I'd say it was a success. It's the same chat our kite club uses at www.ikeclub.org. We just haven't decided to go public with it or not. Right now we use it among the moderators for a quick decision on something.
Mike Kory brought up the point about a live chat and over using it, none of the chat is archived like a regular forum, so there is not really a way to find any info on it. It is a very useful addition to any forum, and I think we may start seeing live chats on other forums to come.