I've been to a couple that have been awesome & a couple that were off a wee bit, as people were coming & going & trying to make up their minds as to whether to stick around ...
Interesting mix of people ... lots of goth types, some raver kids, lots of hardcore techno/industrial fans ... a bit older crowd, but still an eclectic mix ... there are definitely some in the crowd that will catch your eye in a very good way ... it's a change of scenery from the average club, that's for sure.
I'd recommend giving it a try if you liked Area 51 ... (never been there, but have heard the music is very similar) ... it's only $10 & the music is really good ...