well it depends on what you are going to study. It's the best in Australia for certain subjects and average in other subjects.
In general though it has a niceish campus apart from the dated 80s looking buildings. If you are into bars, the mac unibar is decent enough and can usually get a decent name band to come out every now and then. Gerling is playing this Thursday or next.
It of course lacks the overall 'cred'of Usyd or even Unsw, but for economic and financial courses it manages to hold its own against all uni's in Australia.
Anyway, be more specific, what r u hoping to study?