The venue is basically a bar and opens up about an hour before the show... Shows usually start within 10 mins +/- of the posted start time (i.e. this is not like a theater where if you aren't there at the start you have to wait until a certain point to be let in). If you want a good viewing spot, get there about 30 mins before your show starts, get a drink, and be ready to stand for awhile... They do try and clear the place out pretty quickly once the show has ended...
Generally not long after the show
11PM is curfew. :)
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