I've been driving (in winter) on Arctic Alpin's now for six years. The difference with winter tires is pretty remarkable. I expect they're not too sensible in places that don't have continuous snow, but up here I don't know how I used to drive without them.
Agreed. They're worth every penny, even if those pennies did add up to $900. ->
What I don't like? Being forced to buy the lug nuts from the GM dealer. I bought steel rims from Canadian Tire to use just with my winter tires, but of course they wouldn't work with the lug nuts from the mags that my car came with. So my only option was to spend $150 on bloody new ones that, of course, only GM makes. Somebody at GM is making some money.