All I know about USyd is that it's a good uni, but a bit overrated. Sydney is a great city, a bit costly but not compared to Sweden i'm guessing. Plus, the harbour is beautiful. If they have exchanges to Melbourne Uni or somewhere in perth that might be better, but USyd would be a perfectly valid choice.
I'm not much of a Sydney fan, but like Hugh said... if you can get Melbourne Uni, that would be great, or Griffith University (Gold Coast Campus) is pretty close to the beach. I've got a mate who lectures there.
