I've been doing business with them since 2005, it's a great shopping cart, very easy to use and customize and very good customer support. They offer a lot of great features which the seasoned online retailer needs, including email, hosting, support, site statistics, affiliate tracking, banner management and design tools. If you want to put your business on the web, or have an existing business, this is one option you should definitely check.
You can read my full report here: http://topratedshoppingcarts.com/easystorecreator/