One of the nice things about SoftCart is its ability to work either with your own Web pages or with wizard-generated pages. For instance, most online vendors will find the need to figure out taxes and shipping based on a user's location. However, the SoftCart documentation is notably weak about telling how users and ISPs are able to use their own predefined Web pages. Mercantec claims that SoftCart is one of the leaders in the e-commerce field, with over 3,500 licenses in use worldwide. After looking at SoftCart 4.0, it's hard not to believe Mercantec's claims, as SoftCart is one of the best e-commerce tools we've ever seen for both ISPs and end users.
Documentation is skimpy when it comes to implementing advanced features.