it's a never ending cycle, labour gets in for a few years after everyone gets sick of the libs, now the libs are back in and in a few years, everyone will be sick of them and vote labour back in. I think the PUP was a great idea, it threw a potential thrid party in the mix and made people reconsider ALP or LNP, so that in itself was great.
like most aussies, I wouldn't have a clue on what each party wants to do, what they have actually done or what they will actually achieve. unless you have the time to sit down and research it, you won't have a clue, they send out little bits of paper with a very vague outline of what they plan to do, but without seeing the entire breakdown and then following them through their time in office and seeing what they achieve and what they fail on and why - something may not be possible etc you'll never really know, hence why the popular face gets voted in or the unpopluar leader gets voted out