Whatever you do... do not wear pants! You'll thank me later. This place is tiny and authentic and HOT. We went to a Miike Snow concert in June and the hot summer air felt like a gust of air conditioning when we walked out of the place.
Drinks are cheap and the space is great for watching a live show up and personal. Plan on having some cocktails before you go or hit up the beer-only tub in the back to avoid the crazy bar scene.
Oh, and ladies.. there's one stall. Deal.