Can't beat this for the price. I agree the buckle is a little big, but you get used to it. I disagree about not feeling the hand warmers. The mirror should be secures as far left as possible on the grip and this leaves room for you hand to feel the heat from the hand warmers. Mine stays adjusted pretty good. I have to adjust it once in a while, but it is still way better than turning around to look. No drilling of the hood required to mount it. and the best part is it comes right off when it is time to put your cover on the sled.
though these would be nice for trail riding to keep track of the person behind. They prevent the heat from your handwarms reaching your hand and do not stay in place very well at all. Used them once and they constantly were out of adjustment - it was easier to just look behind you.