I used to promote dating sites, in fact that is how I first started on the net. AFF has always converted ok, but I am leery of them.
My more recent experience with them was as a consumer. I buy memberships to sites and see if they are worth promoting, and so I bought a membership, kept if for a while then cancelled, or so I thought. A couple months later the accountant asked me what some charges were. Turns out they were still re-billing me.
To make a long story short they are thieves, and I wound up charging back several months membership that they had billed me for.
I do love
SexyAds though! Converts well, and has been sending me checks for years!