I think the issue most guys have is that they think because they paid for a membership sex should be on the menu straight away. No, it doesn't work that way!
I also had mixed feelings about Ashleymadison until I tried several other affair dating sites and I've learnt my lesson! Except Ashleymadison (and Saphrina.com, which is an absolutely fantastic affair dating site btw) chances to hookup on those sites are minimal. At least Ashleymadison gives you access to genuine women. I know that the press revealed that most members were actually men. So what?! That's no surprise in my opinion!
If you are under 50 and at least average looking your chances are not bad if you invest enough time in creating an interesting profile. Communicate and behave like a gentlemen. As I said in the beginning: Sex is not on the menu straight away, neither on Ashleymadison nor on Saphrina. But with a little patience your chances are not bad at all!