I've been to a couple dance parties here and had a great time. It's a tiny bar in a sketchy strip of Parkdale, totally unassuming on the outside to the point that you may walk by it without noticing.
They've got a couple booths in the front which are good for casual drinks or for coat-stashing if you're heading to the dance floor. The bartenders are sweet and attentive, and the booze is cheap.
As with most bars, your night here will only be as good as what's going on. I've never been here for a casual drink, but I've been to a couple sparsely populated parties, which were far less fun than when the place was packed.
The one downfall of this place is their 100 person capacity. If you know it's going to be a busy night, get there early or expect to be denied.