I have used CL and I think it is pretty expensive, especially compared to other cougar dating sites like Cougars69.com. But as a matter of facts it is a well established site with many members.
I understand that many guys were not lucky on CL. Men outnumber women, that's a fact. But with a solid strategy it works pretty well.
I have stopped using CL because I was more lucky on a different cougar dating site but generally speaking I guess I can sure recommend it.