I've only had 2 fourbies; a GUIII 3.0 Auto patrol that was fabulous off road, and a 200 Series Cruiser (only come in Auto) and it is simply, totally and utterly breathtaking - will be even better with AT's on board...
I drove my Uncle's old Landy on the dirt for several years (he had a few thousand acres) and it was sweet too, but I'm old and lazy now.
I remember years ago, maybe 1982(?) watching an auto patrol or cruiser (forget which) on Aldinga beach in South Oz get hopelessly bogged - he'd lean on the throttle, nothing would happen, then boom! Everything spinning! That has been fixed, I tried spinning them last weekend on the sand and they didn't want to.
Cheers,
Tim