At first I was intimidated by hundreds of negative reviews I have seen all across the web. But here is the truth about most guys posting negative reviews, and I will explain it with two words only - Wrong Expectations!
I see what those guys are doing: They join, they do not even create a nice profile and keep sending one-liners and additionally lots of them add a picture of their private parts. Of course women get annoyed by that after a while and either leave the site or they only communicate with the decent guys. How do I know? Because I have met many women from those sites and they all tell me the same horror stories they experienced using those sites.
I have met women on CasualDating69 and iHookUp and those girls are up for a good time. Just need to know how to not be a dork.
I rate this site 3 out of 5 stars because of the bad male/female ratio and some fake profiles I've found but it is one of those sites which work and on which you can benefit from the stupidity of all the other guys.