Well my Cooper WM SA2's are still doing a sterling job, I didn't even bother to swap them over in the spring for the 16" summer set, as I'm doing fewer car miles now, much less than 2k since the MOT in May.
Still unsure as to what to do when they wear out, but judging by the performance over the last couple of days I'll stick with a full winter set, my nextdoor neighbour was well impressed with the grip, where his Q3 Quattro failed to work at all!
The only slight issue was found clearance, as the undertray was scrapping on the snow.