This place has changed hands so many times it is hard to keep up. I think it was most recently Town Tavern and Brick and Barrel before that.
It is a great place to grab an after work pint as the main level is a cozy room with upgraded decor from the last palce.
However at night, the basement is a dance club. I have not been down there since it became SIP but I do recall losing my hearing for a day down there as the enclosed space traps in whatever beats the DJ is throwing out there. It was a good dance venue though as long as you're not claustrophobic.
One perk to going to SIP is that they supposedly have a working relationship with Fitzgerald's who will validate your parking at the 5th St garage. That is a huge bonus Uptown.