Here at Off-road.com we love our Rhino. A few weekends ago we used our Rhino to herrow a field. The neighbor was also doing his with a Gator. It took him all day to do about a 1/4 of what we did in 3/4 of a day. He was pulling a 4' herrow at 3 MPH, but with the Rhino we were using a 6' herrow and could go over 7 MPH. It isn't very good in the snow since it is pretty heavy. Maybe if we got some bigger and better tires it would be. HMF makes an exhaust for it, they say 3 HP gain at low end, 4 HP gain at mid range, and a 5 HP gain on the top end. Also, since it is the same moter as the Grizzly, you can put a Grizzly CDI on it. One complaint, was the bed is too tall. It puts a lot more strain on your back if you try and load stuff into the bed. Also, the seat belt are a real pain. It takes two hands and some elbow grease to move the buckle on the strap.
Hope some of this stuff is usefull.