PimpRoll has 197 sites for you to promote so far. Or make your own tour pages and link to the join page. Thats huge variety right there, and opportunity for customization.
Members areas are well maintained with nice extras and bonus access for your new joins to stick around a good while.
With Download Pass you have the opportunity to sell at a price point to best match with your quality of traffic.
Weekly payouts is always popular..
Thats good for starters I hope..
I think it probably goes without saying that it's a very active program, both on the webmaster end of it, and on the program operator end. Much more in the works and more coming soon.
tom |@| pimproll.com if you have any more specific questions or concerns at all. Happy to help if I can.