Seriously. If there was a dancercise class that played largely 90s rock and pop (with other classics sprinkled in) I'd be there on a regular basis, and probably rather fitter.
The second-best thing about the venue was the light-up floor, which I've never had the pleasure of being hypnotised by before.
The best thing was the toilet doors. I've seen everything on toilet doors from the simple text "Gents" and "Ladies" to exaggerated social norms of what different genders look like. This is my favourite solution to knowing which door to go through:
And here's my favourite cover version of No On Knows, so you can bask in its awesomeness:
Original post on Dreamwidth - there are comments there.