1. Community
Magento is an open-source platform, which means that thousands of developers from around the globe are simultaneously working to make it bigger, better and even more customizable than it already is. This not only results in a cost-efficient solution, it also provides a higher grade of quality for the product, since thousands of pairs of eyes are much more likely to catch bugs and find solutions than one pair of eyes.
2. Support
A good support team is essential to the success of any online business. Every minute that your site is down equals lost opportunities for conversions. Magento has a support team that is available 24/7, internationally. Incredibly, 94% of cases are resolved on the first call.
3. Extensive Out-of-the-box Feature Set
An easily customizable platform is a natural result of having such a huge open source community. As more and more businesses adopt the Magento platform, more and more features are being developed to suit the demands of a full range of e-commerce retailers.
4. Extensions
If Magento hasn’t already done it, chances are that someone else has. The variety and number of easily integrated extensions that are available for Magento is highly impressive and can answer to almost any customization you have in mind.
5. Localization
Magento allows you to create multi-lingual sites that harbor multi-currency shopping carts, giving you the freedom to easily expand your business to around the globe.