The hospital classes there fill up quickly - it's best to book at the same time as you book into the hospital. I'm surprised they didn't tell you that. It's definitely worth doing their classes as you get to see the delivery suites etc and learn a bit about their policies etc. However, in terms of really useful information for how to get through labour and birth in the best way, the classes at the hospital are pretty useless.

I recommend that you do book into the hospital classes, but also try and get into an externally run birthing class. Also, I highly recommend booking in for a Breastfeeding Education class through the ABA (check out their website Australian Breastfeeding Association) and reading New Active Birth by Janet Balaskas.

Best of luck hun. By preparing yourself before the baby arrives you are likely to have an easier time of labour, birth and the early weeks with a newborn and being much happier for it.