I got to play in a mini-C&C game last weekend. It really didn't impress me much. I'm not saying that it's a bad system, it just didn't give me the experience that I enjoy at the gaming table. That said, there are a few things that I liked:
1. It's super simple. I had a character done within 5-10 minutes of being handed the C&C PHB. That's nice!
2. It's easy to convert between systems. The guy running the game used 1E, 2E, and 3E material all in the same game. He even converted a few critters from each on the fly pretty quickly.
However, there were some things that I didn't like:
1. I didn't like how the ability scores were set up. After playing 3E for a while, the change just didn't make a lot of sense to me.
2. Multiple saving throws. Why? I just don't see the point of going back to old way of doing saving throws as opposed to 3E's 3 saves.
I guess my main detraction from C&C was I like 3E. There are a lot of rules, but at least I know there will likely be a rule for anything my players throw at me. It's the right system for me, so I won't be switching over.
I hope Troll Lords does well with it, but so far it hasn't sold too well at the LGS's that I shop at, but it's still really new.
Kane