diff --git a/README.md b/README.md
index a90a09a..bc1f07d 100644
--- a/README.md
+++ b/README.md
@@ -11,8 +11,7 @@ Lets start with an simple version implementation and grow from it.
 php src/prompt.php
 ```
 
-
-___With Docker ___
+***With Docker***
 
 ```bash
 docker run --rm -ti -v $(pwd):/app -w /app composer:latest /app/scripts/run_in_docker.sh
@@ -46,6 +45,13 @@ I think the code and git log will give a lot of insight of why/how i did X in th
 - Normally in large code bases i work using the git-flow approach but for small repos/projects, working alone and in the begin of the project i dont use it to remove the overhead of it, that is why in most of this project i didn't use it.
 - I have use PHPUnit for some time, but i dont really like the way the testing API is done, that is why i use atoum, which i found more expresive, and easy to understand at first look
 
+# Info
+
+The SERVICE option has been implemented as a different shell with its own commands the commands so far are
+
+- Info
+- exit
+
 
 # Extras
 
@@ -78,7 +84,6 @@ Setup a VendingMachine class with the basic funcionality I/O (Simple version to
 
 - [ ] Cleaning tests
 
-
 ### Interfaces
 
 #### Terminal UI
diff --git a/src/Checkout.php b/src/Checkout.php
index 6427e70..88560c9 100644
--- a/src/Checkout.php
+++ b/src/Checkout.php
@@ -18,7 +18,7 @@ public function __construct(CoinManager $coinManager, Products $products)
     public function sell(string $productCode, array &$money)
     {
         $product = $this->products->find($productCode);
-        if (!$product->any()) {
+        if ($product == null || !$product->any()) {
             throw new \Exception("Product $productCode not available", 11);
         }
 
diff --git a/src/CoinManager.php b/src/CoinManager.php
index 17222c1..535c5e4 100644
--- a/src/CoinManager.php
+++ b/src/CoinManager.php
@@ -51,4 +51,9 @@ public function add(...$coins)
 
         return true;
     }
+
+    public function getCoins()
+    {
+        return $this->coinDrawers;
+    }
 }
diff --git a/src/ConsoleUI.php b/src/ConsoleUI.php
deleted file mode 100644
index 761dd3b..0000000
--- a/src/ConsoleUI.php
+++ /dev/null
@@ -1,111 +0,0 @@
-<?php declare(strict_types=1);
-
-namespace vending\ui;
-
-use vending\Checkout;
-use vending\CoinManager;
-use vending\VendingMachine;
-use vending\models\Coin;
-use vending\models\Coins;
-use vending\models\Product;
-use vending\models\Products;
-
-class ConsoleUI
-{
-    private $coinManager;
-    private $products;
-    private $vendingMachine;
-    private $commands = ['RETURN-COIN', 'GET-'];
-    
-    public function start()
-    {
-        while (true) {
-            $line = readline($this->status());
-            $commands = $this->parse($line);
-            echo ' -> ' . $this->execute(...$commands) . PHP_EOL . PHP_EOL;
-        }
-    }
-
-    public function status():string
-    {
-        $insertedAmount = number_format($this->vendingMachine->getInsertedAmount(), 2, '.', ',');
-        return " $insertedAmount$ >";
-    }
-
-    public function parse($line): array
-    {
-        $sanitized = str_replace(' ', '', $line);
-        return explode(',', $sanitized);
-    }
-
-    public function execute(...$commands):string
-    {
-        $result = [];
-        $invalidCoins = [];
-        foreach ($commands as $command) {
-            $command = strtoupper($command);
-            $spltCommand = explode('-', $command);
-
-            switch ($spltCommand[0]) {
-                case 'GET':
-                        try {
-                            list($product, $coins) = $this->vendingMachine->sellProduct($spltCommand[1]);
-                        } catch (\Exception $e) {
-                            return $e->getMessage();
-                        }
-                        return "SOLD $product RETURN: ".implode(', ', $coins);
-                    break;
-                case 'RETURN':
-                    if ($command == 'RETURN-COIN') {
-                        return "RETURN: ". implode(', ', $this->vendingMachine->returnCoins());
-                    }
-                    break;
-                default:
-                    
-              }
-
-
-
-            $fltValue = floatval($command);
-
-            
-            if ($fltValue != 0) {
-                if ($fltValue < 0) {
-                    // no negative money in coins
-                    $fltValue *= -1;
-                }
-                $invalid = $this->vendingMachine->insertCoin($fltValue);
-                if ($invalid != 0) {
-                    $invalidCoins[] = $invalid;
-                }
-                continue;
-            }
-        }
-
-        if (count($invalidCoins) > 0) {
-            $result[] = "RETURN INVALID COINS: ".implode(', ', $invalidCoins);
-        }
-
-        return implode(', ', $result);
-    }
-
-    public function setDefaultValues()
-    {
-        $this->coinManager = new CoinManager(
-            new Coins(
-                new Coin(0.05, 10),
-                new Coin(0.1, 10),
-                new Coin(0.25, 10),
-                new Coin(1, 10)
-            )
-        );
-
-        $this->products = new Products(
-            new Product('WATER', 0.65, 10),
-            new Product('JUICE', 1.00, 10),
-            new Product('SODA', 1.50, 10)
-        );
-
-        $this->vendingMachine = new VendingMachine($this->coinManager, $this->products);
-    }
-}
diff --git a/src/VendingMachine.php b/src/VendingMachine.php
index 6ab656e..1c9408f 100644
--- a/src/VendingMachine.php
+++ b/src/VendingMachine.php
@@ -11,6 +11,7 @@ class VendingMachine
     private $insertedCoins = [];
     private $products = null;
     private $checkout;
+    private $service = false;
 
 
     public function __construct(CoinManager $coinManager, Products $products)
@@ -53,4 +54,24 @@ public function sellProduct(string $productCode) : array
         
         return [$product,  $this->returnCoins()];
     }
+
+    public function setService(bool $status)
+    {
+        $this->service = $status;
+    }
+
+    public function inService(): bool
+    {
+        return $this->service;
+    }
+
+    public function getCoinManager()
+    {
+        return $this->coinManager;
+    }
+
+    public function getProducts()
+    {
+        return $this->products;
+    }
 }
diff --git a/src/models/generic/Collection.php b/src/models/generic/Collection.php
index dbe7d8d..6d20d4a 100644
--- a/src/models/generic/Collection.php
+++ b/src/models/generic/Collection.php
@@ -38,6 +38,11 @@ public function getIterator()
         return new \ArrayIterator($this->items->toArray());
     }
 
+    public function toArray()
+    {
+        return $this->items->toArray();
+    }
+
     private function internalSort()
     {
         $this->items->sort(function ($a, $b) {
diff --git a/src/models/generic/Item.php b/src/models/generic/Item.php
index fa0f9d4..7e59d58 100644
--- a/src/models/generic/Item.php
+++ b/src/models/generic/Item.php
@@ -53,4 +53,9 @@ public function any(): bool
     {
         return $this->count() > 0;
     }
+
+    public function updateCount(int $count)
+    {
+        $this->count = $count;
+    }
 }
diff --git a/src/prompt.php b/src/prompt.php
index 29dbb0b..246b9ba 100644
--- a/src/prompt.php
+++ b/src/prompt.php
@@ -3,7 +3,29 @@
 require_once './vendor/autoload.php';
 
 use vending\ui\ConsoleUI;
+use vending\models\Coins;
+use vending\models\Coin;
+use vending\models\Product;
 
-$console = new ConsoleUI();
-$console->setDefaultValues();
+function defaultValues()
+{
+    $coinManager = new vending\CoinManager(
+        new Coins(
+            new Coin(0.05, 10),
+            new Coin(0.1, 10),
+            new Coin(0.25, 10),
+            new Coin(1, 10)
+        )
+    );
+
+    $products = new vending\models\Products(
+        new Product('WATER', 0.65, 10),
+        new Product('JUICE', 1.00, 10),
+        new Product('SODA', 1.50, 10)
+    );
+
+    return new \vending\VendingMachine($coinManager, $products);
+}
+
+$console = new ConsoleUI(defaultValues());
 $console->start();
diff --git a/src/ui/BaseShell.php b/src/ui/BaseShell.php
new file mode 100644
index 0000000..d76f301
--- /dev/null
+++ b/src/ui/BaseShell.php
@@ -0,0 +1,91 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui;
+
+use vending\ui\BaseCommand;
+use vending\ui\output\ConsoleOutput;
+
+class BaseShell
+{
+    protected $vendingMachine;
+    protected $consoleOutput;
+    protected $running = true;
+
+    public function __construct(\vending\VendingMachine $vendingMachine)
+    {
+        $this->consoleOutput = new ConsoleOutput();
+        $this->vendingMachine = $vendingMachine;
+    }
+   
+    public function start()
+    {
+        $this->consoleOutput->writeln('');
+        $this->consoleOutput->writeln($this->header());
+
+        while ($this->running) {
+            // $this->consoleOutput->write();
+            $line = readline($this->prompt());
+            $commands = $this->parse($line);
+            $this->processCommands(...$commands);
+        }
+    }
+
+    public function prompt():string
+    {
+        return ">";
+    }
+
+    protected function parse($line): array
+    {
+        $sanitized = trim(str_replace('  ', ' ', $line));
+        $commands = [];
+        foreach (explode(',', $sanitized) as $part) {
+            $commands[] = trim(str_replace('-', ' ', $part));
+        }
+        return $commands;
+    }
+
+    protected function processCommands(...$commands)
+    {
+        foreach ($commands as $fullCommand) {
+            $args = explode(' ', $fullCommand);
+            $command = array_shift($args);
+            
+            if (strtoupper($command) == 'EXIT') {
+                $this->running = false;
+                return;
+            }
+
+            if ($command) {
+                $command = ucfirst(strtolower($command));
+                if (is_numeric($command)) {
+                    $args = [$command];
+                    $command = 'AddCoin';
+                }
+                $this->execute($command, ...$args);
+            }
+        }
+    }
+
+    protected function execute($command, ...$args)
+    {
+        $commandInstance = $this->initializeCommand($command);
+        if ($commandInstance) {
+            $result = $commandInstance->execute(...$args);
+            if (!empty($result)) {
+                $this->consoleOutput->writeln(' -> ' . $result . PHP_EOL);
+            }
+        }
+    }
+    
+    
+    protected function initializeCommand(string $command)
+    {
+        try {
+            $class = new \ReflectionClass("vending\\ui\\commands\\{$command}Command");
+            return $class->newInstanceArgs([$this->vendingMachine, $this->consoleOutput]);
+        } catch (\ReflectionException $e) {
+            return false;
+        }
+    }
+}
diff --git a/src/ui/ConsoleUI.php b/src/ui/ConsoleUI.php
new file mode 100644
index 0000000..b8afe85
--- /dev/null
+++ b/src/ui/ConsoleUI.php
@@ -0,0 +1,28 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui;
+
+use vending\ui\BaseCommand;
+use vending\ui\output\ConsoleOutput;
+
+final class ConsoleUI extends BaseShell
+{
+    public function prompt():string
+    {
+        $insertedAmount = number_format($this->vendingMachine->getInsertedAmount(), 2, '.', ',');
+        return " $insertedAmount$ >";
+    }
+
+    public function header()
+    {
+        $productHeader = array_reduce(
+            $this->vendingMachine->getProducts()->toArray(),
+            function ($initial, $product) {
+                return $initial .= " ".$product->hash()."(".$product->count()."): ".(string)$product->getValue();
+            },
+            ''
+        );
+        
+        return ' PRODUCTS: '.$productHeader;
+    }
+}
diff --git a/src/ui/commands/AddCoinCommand.php b/src/ui/commands/AddCoinCommand.php
new file mode 100644
index 0000000..8b810c1
--- /dev/null
+++ b/src/ui/commands/AddCoinCommand.php
@@ -0,0 +1,18 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\commands;
+
+class AddCoinCommand extends BaseCommand
+{
+    public function execute(...$args):string
+    {
+        if (count($args) > 0 && is_numeric($args[0])) {
+            $fvalue = $this->vendingMachine->insertCoin((float)$args[0]);
+            if ($fvalue != 0) {
+                return 'Invalid Coin to add!  RETURN: '.$fvalue;
+            }
+        }
+        #we should throw error
+        return "";
+    }
+}
diff --git a/src/ui/commands/BaseCommand.php b/src/ui/commands/BaseCommand.php
new file mode 100644
index 0000000..1f999a7
--- /dev/null
+++ b/src/ui/commands/BaseCommand.php
@@ -0,0 +1,22 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\commands;
+
+use vending\VendingMachine;
+use vending\ui\output\OutputInterface;
+
+class BaseCommand implements CommandInterface
+{
+    protected $vendingMachine;
+    protected $consoleOutput;
+    
+    public function __construct(VendingMachine $vendingMachine, OutputInterface $consoleOutput)
+    {
+        $this->vendingMachine = $vendingMachine;
+        $this->consoleOutput = $consoleOutput;
+    }
+
+    public function execute(...$args):string
+    {
+    }
+}
diff --git a/src/ui/commands/CommandInteface.php b/src/ui/commands/CommandInteface.php
new file mode 100644
index 0000000..f0844d8
--- /dev/null
+++ b/src/ui/commands/CommandInteface.php
@@ -0,0 +1,12 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\commands;
+
+use vending\VendingMachine;
+use vending\ui\output\OutputInterface;
+
+interface CommandInterface
+{
+    public function __construct(VendingMachine $vendingMachine, OutputInterface $consoleOutput);
+    public function execute(...$args):string;
+}
diff --git a/src/ui/commands/GetCommand.php b/src/ui/commands/GetCommand.php
new file mode 100644
index 0000000..264926a
--- /dev/null
+++ b/src/ui/commands/GetCommand.php
@@ -0,0 +1,19 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\commands;
+
+class GetCommand extends BaseCommand
+{
+    public function execute(...$args):string
+    {
+        if (count($args) > 0) {
+            try {
+                list($product, $coins) = $this->vendingMachine->sellProduct($args[0]);
+            } catch (\Exception $e) {
+                return $e->getMessage();
+            }
+            return "SOLD $product RETURN: ".implode(', ', $coins);
+        }
+        return '';
+    }
+}
diff --git a/src/ui/commands/ReturnCommand.php b/src/ui/commands/ReturnCommand.php
new file mode 100644
index 0000000..46e2b5c
--- /dev/null
+++ b/src/ui/commands/ReturnCommand.php
@@ -0,0 +1,14 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\commands;
+
+class ReturnCommand extends BaseCommand
+{
+    public function execute(...$args):string
+    {
+        if (count($args) > 0 &&strtoupper($args[0]) == 'COIN') {
+            return "RETURN: ". implode(', ', $this->vendingMachine->returnCoins());
+        }
+        return 'Can only return coins';
+    }
+}
diff --git a/src/ui/commands/ServiceCommand.php b/src/ui/commands/ServiceCommand.php
new file mode 100644
index 0000000..08c7f23
--- /dev/null
+++ b/src/ui/commands/ServiceCommand.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\commands;
+
+use vending\ui\service\ServiceConsole;
+
+class ServiceCommand extends BaseCommand
+{
+    public function execute(...$args):string
+    {
+        $console = new ServiceConsole($this->vendingMachine);
+        $console->start();
+
+        return '';
+    }
+}
diff --git a/src/ui/output/ConsoleOutput.php b/src/ui/output/ConsoleOutput.php
new file mode 100644
index 0000000..90d85f0
--- /dev/null
+++ b/src/ui/output/ConsoleOutput.php
@@ -0,0 +1,16 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\output;
+
+class ConsoleOutput implements OutputInterface
+{
+    public function write(string $message)
+    {
+        print($message);
+    }
+
+    public function writeln(string $message)
+    {
+        $this->write($message . PHP_EOL);
+    }
+}
diff --git a/src/ui/output/OutputInterface.php b/src/ui/output/OutputInterface.php
new file mode 100644
index 0000000..cd245a0
--- /dev/null
+++ b/src/ui/output/OutputInterface.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\output;
+
+interface OutputInterface
+{
+    public function write(string $message);
+    public function writeln(string $message);
+}
diff --git a/src/ui/service/ServiceConsole.php b/src/ui/service/ServiceConsole.php
new file mode 100644
index 0000000..16b7d31
--- /dev/null
+++ b/src/ui/service/ServiceConsole.php
@@ -0,0 +1,30 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\service;
+
+use vending\ui\BaseCommand;
+use vending\ui\output\ConsoleOutput;
+use vending\ui\BaseShell;
+
+final class ServiceConsole extends BaseShell
+{
+    public function prompt():string
+    {
+        return " SERVICE>";
+    }
+
+    public function header()
+    {
+        return '';
+    }
+
+    protected function initializeCommand(string $command)
+    {
+        try {
+            $class = new \ReflectionClass("vending\\ui\\service\\commands\\{$command}Command");
+            return $class->newInstanceArgs([$this->vendingMachine, $this->consoleOutput]);
+        } catch (\ReflectionException $e) {
+            return false;
+        }
+    }
+}
diff --git a/src/ui/service/commands/InfoCommand.php b/src/ui/service/commands/InfoCommand.php
new file mode 100644
index 0000000..9f77c25
--- /dev/null
+++ b/src/ui/service/commands/InfoCommand.php
@@ -0,0 +1,41 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\service\commands;
+
+use vending\ui\commands\BaseCommand;
+
+class InfoCommand extends BaseCommand
+{
+    public function execute(...$args):string
+    {
+        $this->getProductsInfo();
+        $this->getCoinsInfo();
+        return "";
+    }
+
+    public function getProductsInfo()
+    {
+        $productHeader = array_reduce(
+            $this->vendingMachine->getProducts()->toArray(),
+            function ($initial, $product) {
+                return $initial .= str_pad(" ".$product->hash().": ".$product->count()."\t", 15, ' ', STR_PAD_LEFT);
+            },
+            ''
+        );
+        
+        $this->consoleOutput->writeln(" PRODUCTS: $productHeader");
+    }
+
+    public function getCoinsInfo()
+    {
+        $coinsHeader = array_reduce(
+            $this->vendingMachine->getCoinManager()->getCoins()->toArray(),
+            function ($initial, $coin) {
+                return $initial .= str_pad(" ".(string)$coin->getValue().": ".$coin->count()."\t", 15, ' ', STR_PAD_LEFT);
+            },
+            ''
+        );
+        
+        $this->consoleOutput->writeln("    COINS: $coinsHeader");
+    }
+}
diff --git a/src/ui/service/commands/UpdateCommand.php b/src/ui/service/commands/UpdateCommand.php
new file mode 100644
index 0000000..b2adf76
--- /dev/null
+++ b/src/ui/service/commands/UpdateCommand.php
@@ -0,0 +1,45 @@
+<?php declare(strict_types=1);
+
+namespace vending\ui\service\commands;
+
+use vending\ui\commands\BaseCommand;
+
+class UpdateCommand extends BaseCommand
+{
+    public function execute(...$args):string
+    {
+        if (count($args) < 3 || in_array(strtoupper($args[1]), ['COIN', 'PRODUCT'])) {
+            return 'USE: Update [product|coin] amount';
+        }
+
+        switch (strtoupper($args[0])) {
+            case 'COIN':
+                $this->updateCoin($args[1], (int)$args[2]);
+                break;
+            
+            case 'PRODUCT':
+                $this->updateProduct($args[1], (int)$args[2]);
+                break;
+        }
+
+        return "";
+    }
+
+    private function updateCoin($coin, int $amount)
+    {
+        $coinManager = $this->vendingMachine->getCoinManager();
+        $coin = $coinManager->getCoin((float)$coin);
+        if ($coin) {
+            $coin->updateCount($amount);
+        }
+    }
+
+    private function updateProduct($product, int $amount)
+    {
+        $product = $this->vendingMachine->getProducts()->find($product);
+
+        if ($product) {
+            $product->updateCount($amount);
+        }
+    }
+}