I have hooked up using this site, as I'm sure have many others. I will agree with the assessment provided here though-- fewer posts, not as rapid as before the "makeover." If you want instantaneous contact and hookups NOW, you're probably better off using the competition/pay sites. But considering this is widely read and as Darkr says, FREE, it is a good place to look up ads/respond to ads/post ads.
I too have had to sift through the flakes, spam, and occasional rude people that don't bother demonstrating manners (like simply responding, if only to say "thanks but no thanks"), but that's the case everywhere I think.
Good luck finding what you're looking for!