Columbia has always had a jazz scene, and this place is part of it. Come here to enjoy the atmosphere and savor the music. You can get comfortable, but get drunk somewhere else first.
The other reviewers are spot-on about how fab the seating is, and how slow the service is. When I was there in July '09, I saw 2-3 waitresses waiting tables, but they were behind the bar making their own martinis. A bartender or two must have called in sick that (Friday) night.
While the drinks were over-priced, some of them, like the 'Blue Valium' were nothing but booze. Kinda how I like my martini, actually.
I also had a rum/pineapple/coconut 'tini that may have been sitting near the rum bottle, but didn't actually have any rum in it.
I've been there three times, and will certainly go again. Until the service gets better and they have prices on the menu, I'm docking a couple stars. Otherwise it would be a full 5 stars.
Pros: nice place, good music, smokers patio
Cons: expensive over-the-top martini menu