Interesting, but I see two problems. I could never get all the way to the end the driveway with a building there. I would end up with a little pile in the middle that I may not be able to get rid of unless I could drive past it, which I couldn't because of trees. If I started at the other end the prevailing wind would be a pain.
secondly, on my black top the wheels would pack down wet snow before the blower got there. It would then ride over the packed stuff. This would eventually turn to ice. I plan ahead now so that I don't drive over snow because of the packing effect.
It may be neat but it's not something I'd buy until I could test it a few times.