2010 825i XUV - I've put 16+ hours, mostly riding in rough terrain. I have lots of hours with the 620s, and the new Gator is a huge improvement. The suspension is fantastic, and really makes the vehicle seem more stable. I have the full protection kit (which I highly recommend) and love the new Maxis 2 tires, as they really give you good traction. The engine sound is a little bizarre. The only "complaint" is that it runs hot. I had the same issue with the 620 and would have to raise the bed (love they hydraulic lift for this reason alone) to let the engine cool. Keep in mind that I'm running this up very steep terrain that requires max power in order to get up (old skidder trails from logging in southern Ohio) the trail. So, I'll be looking at after market fans. I'd like to see some snorkel kits, as we have a river that we like to bow fish, and would love to go through some spots with the Gator. (Safety Note: I canoe the river and am very familiar with the depths, etc.)
I looked that the Kawasaki Tereyx and CanAm Commander. Both are very nice, but needed more utility which the Gator provides in spades. I'm taking it deer hunting this upcoming weekend, and will use it to carry tree stands and several guys way back into some prime hunting areas that were difficult to reach with ATV's (Gator does much better on some of the more vertical trails) plus ran out of vehicles to transport guys and gear.
They had JD show in Cincinnati, and saw the Camo version, but didn't like the qualilty of its application, so mine is the OD Green. Wanted the black wheels, but all they had in the midwest was the pretty shinny alloy ones, to include billet hubs and valve stems. Not exactly what you want in the woods, but they didn't scratch up as I anticipated in the heavy rocks.
The thing is a beast, runs great and am exceedingly happy. It was a big improvement over the 620 which I liked as well.