Happened to go past the yet to open Crunch Gym at Parramatta today and noticed their pre-openning special of $5.95/week and no joining fee. They don't have a lot of info about it on their website (like, next to none!) but looks like it is only for the Base membership. You could only use that club and would have to pay $5 extra per class.
May be good for someone just into cardio or weights without wanting to do classes. Normally the base membership is only $6.95/week (compared to their other clubs) so not a hugh saving, but no joining fee is nice. If you're into classes, you'd prob go for the Peak membership which is $10.95/week and includes all classes, and access to other clubs.
Looks like you can sign up online, but you would probably want to call or drop by to get more info.
Ends tomorrow. Not sure when club actually opens - looks like they're still working on it.
For those interested, the gym is due to open around June/July.
Also if you sign up on their early bird membership you can change your membership type from base to peak and vice versa and stay on the special rate, however a fee applies which I've been told is $5-$10.