Magento is a feature-rich, professional open-source eCommerce software which offers unprecedented flexibility and control over its look, functionality and content. The most striking feature of Magento is that it is 100% customizable. You can have your own version of Magento.
Magento strictly follows the MVC architecture. This means that you can change the total look and feel of your Magento application without touching the inner logic of it and vice-versa.