A buddie of mine has the two-up 800. I've ridden it a few times. You will never want more power if you get this machine, it flies. The only issue I've heard of is the frames getting weak after you hit a rock with them. They are a square tube design that can get dented and lose strength. An aftermarket skid plate should make this a non-issue. It's also very important to keep the radiator washed out.
formguy
formguy