Everything I have heard about this group makes it sound like a giant scam. I've known a couple of girls who used to work for them and they acted like the sales people for gym membership - ie. high pressure, condescending (telling you you're not going to meet anybody on your own if you haven't already, blahblahblah).
And pretty much it's not like they do anything that you can't do on your own. They set up "parties" (from what I heard most in public bars where anybody can go to), and you're on your own. They're the equivalent of the photography "workshops" that you see advertised where they get the free models and the free public space and charge you for it. Just cut out the middle man ;)
The bigger issue here is if you're looking to meet someone to date, you'd be shooting yourself in the foot if everybody in the group knows everybody else. On a dating site if you meet someone and it doesn't work out, no harm no foul - you just try to meet someone else and it's unlikely your last attempt will follow you. In a setting where everybody knows each other on the other hand, if you go out with someone a few times, everybody in the group knows about it so if things don't work out, you're pretty much SOL if you try to go out with someone else in the same group. (see the movie A Beautiful Mind for the theory).
Here is the clip :)
http://www.youtube.com/watch?v=v5jrNoNNtrE
PS. here is the citysearch review: apparently this is a bigger scam than first thought: $1600/ year??
http://houston.citysearch.com/profil...dventures.html