I have snowproxes on mine, purely because I got them cheap on a set of hideous alloys. TBH they’re a mixed bag, the hard braking isn’t as good as my old icebears, they can scrabble around a fair bit- though, still way better than my everyday hankook v12 evos. TBH they’re too wide for a sensible winter tyre, I’m pretty sure that’s the problem. Slower braking they’re very good, for really nasty maneuvres, hill descents etc.
OTOH, forwards grip is hilarious. I tried pretty hard to get it stuck last year and found that the limit is the point where the bow-wave of snow that I’m pushing through crests up over the bonnet and covers the windscreen (and, not coincidentally, crushes the bumper, ah well). This is fairly ridiculous.
I wouldn’t choose them again, or at least, I’d choose a sensible size. But they’re good all round.