I’ve had a great experience promoting Full Tilt Poker. Not only are signups good, but player value and excellent has been excellent there.
I stopped promoting them for 15 months while I worked as a consultant for another poker site. (My contract had an exclusivity clause.) I made consistent money from FTP the entire time for the players I’d signed up previously.
I’m not disagreeing with anyone else’s experience, but I am sharing another perspective.