I have just bought a new pressure cooker. I have had a pressure cooker since Methusala was a kid!
This time I chose a smaller one of 4.5ltr. It is a
WMF pressure cooker. Because there is only one of me at home, had thought to get the 2.5 ltr but then wondered if I would be sorry when guests came or I cooked more quantity for the freezer. It goes up in size to 8 ltr.
I am very pleased with it. Unlike my previous Prestige one, it comes to pressure very quickly and does not do the loud hissing thing. There are no weights to add to the lid, you just count the rings which rise up to show you where you are with the pressure. It stays at pressure with the very smallest amount of heat from the cooker. It is great for washing too as the handle comes off in a unique way. It feels good quality as you would expect from German engineered steel.
I don't know if you can get it in Oz but If you do, then it gets my vote.