I've used osc since 2003, and have a few stores running it, but was really looking for a cart that was joomla native, and this lead me to ecjc.

I picked it over virtuemart for a few reasons;

1) because it was more obviously descendant from osc

2) I seemed to be able to get my custom plugins working (not quite right)

3) It did more, and it did stuff I needed

4) access to a shared codebase from osc

The limitations I found with the product really are that it has only a few users and developers working on it. What that translates to is that if you have a problem you probably need to nut it out yourself, either the time or the $$$.

Now that osc has released 2.2, and joomla 1.5, I don't really know what will happen to this product. It likely that integrating the osc 2.2 codebase changes, as well as alterations to support joomla 1.5 are quite a way off unless this project gets more support.

till