Magento is a beast--it has the most power, and you can do so much with it. But you really need a developer you trust (not necessarily full time) to use it successfully. We value the flexibility of Magento.
We use Magento connected with a gateway operator, Authorize.Net.
All of our e-commerce happens on Magento. Between that and MailChimp, they act as our CRM.
Magento offers a flexible, scalable eCommerce platform that empowers businesses to grow and succeed online. In addition to its flagship open source digital commerce platform, Magento Commerce boasts a strong portfolio of cloud-based omnichannel solutions, empowering merchants to successfully integrate digital and physical shopping experiences.
Visit the website: http://magento.com/