We like the idea of the eBay module, but we used 300 'requests' without getting but a few items listed for a few days, with zero orders.
This eBay pricing module should have a step between the SMALL (100 products) and the MEDIUM (2,500 products) - like maybe a $49.99 Monthly plan with 1000 products, or $499 year. Even that sounds high, in light of the fact we're now paying several monthly 'subscription' fees for X-Cart modules.
Our business would have to sell hundreds upon hundreds of eBay items to OFF-SET a $799 yearly fee. It is clearly prohibitive for our application.
The module also requires that you use existing eBay categories, or you must setup eBay categories for your products and products with variations need to be setup manually.