I'm going there in a couple of weeks (Halcyon ft. Hallucinogen, Shpongle + Eat Static, since you asked) and was wondering what people's experiences are of it?

Is it hideously corporate? (being in the 'O2' and all)
Is the security over-zealous?
Drinks overpriced?
Soundsystem decent?
Crowd cuntish?
etc
etc