Define, "phenomenal." Like mid six-figure phenomenal?
When I looked into it, there was a company offering $180-270k, depending on your background. While there are some people who earn the lower range of that, here in the states with our skill sets, their compensation was without insane overtime. That was a few years ago though, when Australia was desperate for certain skilled trades and engineering talent, I'm not sure how it is now. I remember just power plant control room operators, which we're both likely qualified for or were, was $140-180k, on a less than 40 hour work week.
We have quite a few people, on the non-nuclear side clear $200k, and one individual actually cleared $250k last year... but those were all wages earned by working 24/7 all year... It's not the same over there.
Granted, the cost of living over there is significantly higher, but their dollar does bounce around parity with ours now.
We've had a number of people also travel on work-contracts in the middle east, making even more, albeit... they usually had to work long hours and were stuck in foreigner housing projects.