My dad owned one of the early models. It was also a Diesel. He bought it brand new and said it was a POS from day one. When it rained, water would run inside the cabin from the door seals. The power was so crap that you could nearly beat the thing on foot in an uphill race. He didn't have it for a very long time before switching to a Mitsubishi Pajero which turned out to be so great he bought a second one after having the first for a few years. Personally, I like the newer G class. I think its got a very classic off road shape, and having been in one I can safely say that its the easiest vehicle I've ever had the pleasure of climbing in and out of. For my height and size, I do the least amount of neck bending and maneuvering to get into place.
Of the embarrassing vehicles I'd like to drive, I think it'd be neat to take out a hummer h2 and see how far I can make it up a mountain before it gets stuck or rolls.