It's basically one of the worst gyms you will find around north ryde but it is cheap (around $100 for 4 months plus a month free if you sign up with a friend).
They only have 1 set of dumbells which is just crazy in a gym catering 20 000 people. If you are using light weights you will find yourself spending a lot of time waiting for others to finish their sets. So try and graduate to heavier weights quickly
Also, kendo trains in the same room sometimes and this can get EXTREMELY offputting when you are trying to pump out that last rep big rep. Those kendo guys must not realise how pansy their little screams sound.
If you are scouting for talent, it is not the gym to be in.
the lack of AC can get pretty intense in summer but I just think of IFBB Mr Olympia Ronnie Coleman who trains in even hotter conditions!
Hope this helps.