They are quite easy to set up, the problem is participation. We used to have an off site one that only a handful of guys joined and then Edd integrated one into the forum at the bottom but only 2 or 3 people joined that too. I actually like to chat as well as post on the forum so if people want to try it again I am sure it's something we could set up but as I said if people aren't going to use it, it's a waste of time.
Maybe a show of hands on who would actually join and chat daily would be a good idea?
Had a chat function on another forum I used to frequent and it was very popular,the only bother was instead of people asking questions on the forum they asked it in chat so the forum was robbed of some info in a sense.