Neat site. Sort of like a poor man's (or more accurately, rich man's) RateLocal. It's basically the yellow pages morphed with user reviews morphed with social networking. It really is a nice concept, and these guys did a very good job with their site.
What I don't like is the hipper than thou feel of the site. It seems a little smug or something. And after a while, it's only so much fun to rate restaurants and bars and drycleaners... The site lacks the breadth of stuff to rate that RIA has.