My car has the stock 19" with all seasons and I've had a few drives where the roads were awful here in Boston and the car performed wonderfully. I was really impressed.
However, my cold-weather gripes are that the trunk button often freezes and won't work (usually when it's below 20F) and my frunk often won't open when it's equally cold. This is typically common when it's snowed or rained then gotten to those really cold temps within the next day. Interestingly, I've read a lot of comments about door handles freezing, but I've never had that experience. Sucks when there's something in the frunk I have to get out (usually kids hockey equipment) and it just won't open. I have to keep trying to get the app to open it, and then get my fingers under that very small opening and yank it up, before the latch tries to secure it closed again.