It's a total dive. There's very little in the form of atmosphere. And the place is filthy and probably hasn't changed it's appearance in its entire existence. But you know what else? NO ONE CARES!
This place is always, and I mean ALWAYS, busy. As long as it's open there's patrons there, at least as far as my general observation as someone who lives in the neighborhood goes anyhow.
If I were to liken it to anything it'd be the coolest treehouse that you had ever seen as a kid, but it serves beer and you're all grown up now, at least according to your drivers license anyhow!
Cheap beer, bar rail and shots. Close to the bar you were going to go to afterwards. If you can't be around hipsters then maybe stay away, although after enough affordable drinks you probably won't care anyhow!