I have joined a few of those sites. I stopped my membership. You have to think it is unusual that good looking girls in their twenties are having trouble getting laid (who would refuse) and they are willing to hook up with some middle aged or older dude. They could go to a bar, etc. and pick up someone they find attractive (personality wise and looks wise) - it would not be that hard. Why does nobody want to get together for coffee or speak on the phone. Has to conversations through web cams / chat areas.
Match . com has worked for me. There are no "bots" sending stupid emails with canned language. The only thing you have to worry about is a few ugly chicks or "ladies looking for a well off second husband" wanting to get together for coffee. The religious dating sites are also good for real people. I heard a lot of good things about eharmony as well. Supposedly it is the best.
However, if you are looking to "hook-up" just go see a SP or MPA - saves time and a lot of bs. The other sites eharmony, etc. are for relationships. The "hook-up" sites are bs - they just try and get you to spend money and charge for emails, webcams, etc. They really want to get you on the webcam - ca-ching ca ching.$$$$$$
