I recently purchased the Yamaha Rhino 450. The comfort is great. Performance on trails is exceptional but but be careful with low lying branches. The roll bar will impact low tree limbs. I purchased this ATV for the comfort of two passengers and without the intentions of extreme off road conditions. From what I can tell so far, it should do as well as most 4 wheelers under normal conditions. I took the windshield off. At speeds over 15 mph, the cab sucks in dust and debris which can be a real pain for the eyes. If you are in moist conditions with little dust, the windshield may be worth the money. You may want to compare the 450 with the 660. The 450 is a little sluggish at takeoff. I estimate top speed to be around 37 to 40 mph. You may want to consider an optional roof, especially in hot summer conditions. They can be expensive so shop the net for bargains. The Yamaha brand options seem to be a bit high but Yamaha is known for quality. So far, I'm pleased.
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