This is a very nice and easy to use product and it does work well with very little effort so 100 stars to the developer for that. There is only one small problem that popped up for me and that was that I could only sell one downloadable product at a time. I did buy the product which was reasonably priced but was not able to use it because of the one product at a time problem. It's ok though, I support this product being grown as much as possible because it is fantastic for the one or two product kind of business. I may be incorrect but I did not see anyway to configure a cart with it. It takes the user directly to paypal! If you are selling documents or other single downloads this is a superb product and works seamlessly with docman.
Thank you very much for a nice review and your suggestion . The cart feature were planed but we didn't have time to implement it before because we were busy for our project . Now , we are working hard on it and the next version will be released on next week .