 We don't have snow here so I can not comment on that.  I can not seem to adjust the vent to the right of the driver set to my liking for some reason....It just always seems to blow right on me no matter what I do!  Not enough of a left to right adjustment available I would guess.   Cant speak on maintenance costs as yet and that's a good thing but the mileage seems to be lower than expected.  According to the car's internal stats and the amount of times I go to the gas station per month,  I am getting less mileage than my 2007 Toyota Camry and that's NOT a good thing!  I will evaluate that more closely over the next few months.