GREAT venue. Packed when sold out but very comfortable when not, just like many other places in that regard. It's mostly a standing venue with very few chairs. The place rocks! More or less, state of the art as far as showcasing the bands. In fact, the bands tend to love the place. Several bars all around the place. In the club itself, there is the main floor and then an upstairs which is more like a mezzanine that wraps around the walls with a very big hole in the floor that allows you to see the crowd down below.
There's also the Backbar which you cannot see the bands play from but it's downstairs as oppossed to in the back. You see, it was the Backbar from the old club that was brought over to this newer one. It's very tiny, or intimate, and nice to hang in after the show or during if you can't handle some band onstage or whatever reason you choose to go there.
It's a very professionally run place so don't expect any half-ass shit to have to deal with. And don't bother asking about if you can light up there. As in, the Jam bands favorite brand of smoke. Your ass will feel the sidewalk faster than you can take a toke if you do try. They aren't going to loose their club for that so don't even try.
As far as Jam bands go, I'll leave those details to Redsock, aka Big Jamsock, as he is the man with anything and everything that you would ever want to know about Jam bands.