It's very hot so if you like hot you'll like it!
It's isolated in that for your DSD she wouldn't do Uni there etc - unless something has changed. I lived in Townsville - Mackay I did a few months there also and also Rockhampton. Mackay has lovely access to the islands etc.. That's a positive.

It's the heat. I am not sure how you would cope coming from Melbourne. It's the humidity more than the actual temperature. I personally don't like that heat at all - but some popel are absolute fans (scuse the pun )...

I think anything that pushes you out of your comfort zone is a good thing - why not do it if you're up for adventure?! If you don't like it you've made some good money and you can get on to the next thing.

Good luck!