Whether you're an experienced punter or a complete novice, places like
The private club, xtasia etc are a completely different kettle of fish. If you're the quiet / shy type, I wouldn't recommend attending a Saturday night party ever. You have to be more than happy to stand pretty much shoulder to shoulder with blokes, dick in hand, to get good value for money.
If you do want to give it a bash- don't head down there till about 9:30, 10pm. Although it says 8-2am, the party never starts till 9, so if you get there at 8 that's an hour waiting around getting frustrated. Then as soon as it starts you have lots of blokes trying to jump in, and you'll be hard pressed to get anywhere in the first hour if you're not pushy.
It then calms down a bit, and by 10-11 some people have already popped and left, some people start to relax, and the atmosphere generally chills a bit.
You do get VFM in terms of number of girls you can put your dick in, but it's always balanced out by the lack of intimacy- unless you're lucky enough to get involved with a swinging couple!