AAC has been absolutely fantastic for me in the second month I've sent traffic there. With qualified guests converting to paid signups at a ratio of under 1:14, this is easily the best converting sponsor I've ever dealt with.
Stats:
I won't bother with whoring a referral, as there have been several already in this thread. I just wanted to share my support of the program, and hope some of you have as much success working with AAC as I have.