I owned an A'Van for 6 years, I bought it new in 2010 and sold it in 2016, we loved it. We actually lived in it for 3 months while we took a long service leave trip down the west coast.
Our had no leaks what so ever, well there was one little 'leak', because we ran the compressor fridge for 3 months solid the little drip catch tray at the back of the fridge overflowed, it was an easy fix, just put a bit of small plastic tube as an extension on the outlet of the drip tray
You can buy an 'off-road' version now, if I had that option when we bought ours I would have taken it, ours was a bit limited going bush like we like to do
In the 6 years of ownership the only thing that went 'wrong' was the little flue extension from the gas powered fridge fell off, it was a 20 minute job to recover it and re-fit with a tech-screw so it wouldn't come off again
I paid 29k for it new and sold it 6 years later for 22.5K, the purchasers were over the moon with the condition
You will struggle to find an A'Van owner who has had issues, everyone I ever spoke to had nothing but praise. But there was this one bloke we talked to at a Broome Caravan Park who had issues, but he was to blame, some fool told him to pump up the tyres to 60psi when on rough gravel roads so a few things vibrated out of place.
Towing was awesome, 910kg, no higher than the PK Ranger we had at the time, didn't even know it was on the back most of the time
I was able to store mine in a conventional 6x6 house garage
We owned the Cruiseliner 2b -
https://www.avan.com.au/our-range/ca.../6-cruiseliner
How they set up and pack up - piece of cake, so simple -
https://www.youtube.com/watch?v=dl0V6ex6wSs
This one shows around the van and setting up etc -
https://www.youtube.com/watch?v=wwBo47n5gvI