Have been using WP Easy Cart for Years

We have been using WP EasyCart now for several years. In that time, the developers have kept adding features and improving performance. It has always worked well for us. And their support ticketing system is personal and prompt. We have rarely had to wait even 24 hours for a response and a resolution to problems we have encountered or questions we have had.

Probably the nicest thing about the package itself is that it is self-contained. It is a full-featured online store package. There is no need to acquire other supplemental plugins to provide additional functionality.