Our children are a bit younger but our experience has not been great largely because there doesn't seem to be enough emphasis on the three Rs. It must have been this way for a while because you've only got to spend a short time in the workplace to realise spelling is not an Australian forte. You basically have a choice of a government school in which case it's just like the UK postcode lottery; there are good & bad of course. Then you have the low fee (appx $5-10k per annum) private schools or big jump to ($15-25k) elite private schools. The problem if your not religious is you either have to go for a state school or an elite private school; everything in between tends to be very religious. I believe some of the private schools offer two different curriculum SACE (South Australian Certificate of Education) or IB (International Baccalaureate). The latter is apparently more readily accepted if your child wants to attend university overseas.
Cracking post, sadly it's not factual.