Queensland’s parliamentary system is based on single member electorates. All you can really say in praise of this system is that it reliably provides all Qld voters with a local member. There is no guarantee that the winner of the two part preferred (2PP) vote will form government nor that the parliament will function as a check and balance against government excesses.
This post looks at how a parliamentary system based on 3 member electorates could overcome most of the shortcomings of the current system.