Been here a couple of times. Once just for drinks in the middle of a Saturday which had a fun crowd. People playing board games and the bartenders were fun and engaging. Went another Sunday night for stand up with Hannibal Buress. Can't complain about a free show and although it was packed, the bartenders still knew what they were doing and service was great.
I was here for Hannibal Buress's Sunday night comedy showcase. The drinks were reasonably priced but be warned there's a $10 card limit. The comedy show was free and I got to see really funny people. Since Hannibal worked on SNL for so long he has lots of funny friends that drop in. On my visit I saw Moshe Kasher and Natasha Leggero.
Free stand-up on Sun nights is unpredictable in quality/tastefulness but generally very funny. Be sure to arrive early (like 7 pm) if you actually want to sit (there's only 8-10 chairs). Otherwise, most people just stand for the show. Beer is decently priced, though on the night we were there, all taps were down and they wouldn't give me a glass for my bottled beer.