I play at Stanley Deason on Monday nights (and Waterhall and Westows before that). It's great fun and a good way to keep fit. "i've heard the players at Deason can be quite temperamental." - I've never had any problems up there. It can get a bit rowdy every now and then but so would most contact sports I'd imagine. Played about 15 games there now and most teams I've met have been nice guys.
If you haven't played in a while then it can be alarming to see how unfit you are. I think I managed about 3 minutes before making a sub in the first game.