Waited in line from 11 til probably 11:30 or 11:45 when ANNA was playing. Definitely worth it. Pretty mixed young crowd, jam packed inside for the event. Huge dance floor and good sound. Watch out for the two drink minimum per check if you're mostly looking to dance.
Awesome dancing! Some of my best nights in San Francisco we're dancing here. If you go before 10 you can get in free. Great bar downstairs and the crepes place next door is a great way to end the night.