Hi Tim,
I like the Jurgens caravans in general, and I like the Stargazer. I've never had an up-close look at one though, all my experience comes from internet and TV/video, which can hide a lot. From memory, someone on here has one, but I can't remember who. They quite liked it.
If you've got the option to go and have a look at one in person, I'd certainly do that. Jurgens have been making off-road caravans for years in South Africa. If their gear can stand up to that environment (and it's wildlife), then it should be pretty compatible with the Aussie outback.
The main downsides I could see would be the amount of canvas to put away wet, and what that would mean for the insides of the van (I assume they've thought about this, and can't see it being worse than a Jayco/Goldstream), as well as potential spare parts availability. They're not the most popular things around the place, after all (which is one of the reasons I like them). The drawbar-to-axle length looks very long, so the break-over angle won't be super on it, but they've got good strong slider bars along the sides of them, and the upshot is excellent departure angle at the back.
I don't understand the bit about the beginners either, but I might be missing something as well. I'd like to be enlightened. And as for D4D - don't listen to him - he drives a Prado, so you know his taste is a bit off to start with...
Good luck - they're an interesting caravan, that's for sure. You're pretty much guaranteed not to have to park next to another one like it!
Matto