Turgrid,

Thought I'd let you know that rifftrax.com now uses Marketplace. When you create an account you are given an option to signup for "iriffs" which is our customer riffing feature. From there you can create products and so far it's working pretty well You can see the ones that people have created at www.rifftrax.com/iriffs

Also, I wanted to say that my "find" from a couple weeks ago was wrong. Right now the SQL queries are looking for all nodes of type 'product' when that doesn't allow for Product Classes. Classes is actually where Marketplace can shine, because it allows you to keep separate your official, main site-based releases from the customer products.

For instance our nodes for customer products are "iriff" node types as opposed to the usual Ubercart "product" node type. So if you can find a way in there to get the module working with products and product classes I think it'll be huge.

Feel free to check out the site, and sign up for iRiffs, and let me know what you think.