I have the 800XC. My wife and I have ridden it a couple of times, nothing too rough. She enjoyed it, appreciated the location of the hand holds. We had sat on several Polaris 2up machines and she sat on this one in the show room and immediately said it was much more comfortable. I can't say I could tell an appreciable difference with her on the back. I'm sure there was, but I don't remember it being horrible. We are both very "plump" and it handled the load very well. As the driver, I can say that there is a world of difference with a passenger on a machine made for 2, we had ridden a couple times 2up on my Kawasaki Prairie 650 and that wasn't overly comfortable.