Went to Joystix last night with the wife and had a good time. There were a lot of couples and groups of friends there. I didn't see many families at all, which I think is kind of a bummer. But with all the cussing, liquid cigarette smoking (which was almost as smelly as a real cigarette), overcrowding, etc. I can understand why.
This is a great place to play the newer games. All of the Sterns were fun (seemed like they had about 20 Sterns). And I got a lot of time on WOZ (had two versions, one 75th), which I hadn't played much before. They have some awesome newer vids and skill games as well, along with some great classics. I had never played Discs of Tron before, but I got some time on it and really enjoyed it.
The classic Bally/Williams are somewhat neglected. CFTBL, MB, CV - flipper problems. NGG, CC - resets. I think MM, Comet and WD were the only classics I played that worked. Many other classics were either turned off or sitting there with a ball trapped (Congo, amongst others).
All in all, it's a great place if you want to play a lot of games for 15 bucks and are willing to accept the bad with the good (downtown, large crowds, limited hours, etc.).