Defiantly do it.
I emigrated to Australia almost 5 yeas ago, currently going through the Australian citizenship process. Great country to live in, the economy here is excellent, you'll find that everything costs a lot more, but you get paid a lot more to compensate so will have a lot more disposable income.
Like others have said, don't expect it to be "Britain in the Sun", it's defiantly not. Australia is it's own country and very different from the UK in many ways. I haven't been to Tassie, but it is a small place, not like one of the major cities (I live in Melbourne). People who don't live in Australia really don't have a sense of the size of the country, It's MASSIVE!. Australia is the same distance end to end as London to Moscow.
Did you know Tasmania has the cleanest air on the planet.
https://www.buzzfeed.com/jemimaskelley/facts-about-australia