Seems to depend on the individual car. Mine's been bloody brilliant. Thought the fuel economy was a little high at first, but it's settled down nicely. Even the DPF (yours won't have one) doesn't give me any grief.
If yours is an ST manufactured early 2010, it might have issues with the turbo vane actuator - replaced by the dealer under warranty - but other than that they're mostly trouble-free.
G'day and welcome to the forum mate.Where in central Vic are you.We have a Victorian forum meet up this weekend at Kirth Kiln National park just near Gembrook if your interested.Search VNOG