I have already traveled 1800 km on rubber in 3 weeks, the first 500 run-in, acceleration and braking smoothly, the speed is not more than 60 km / h, after up to 130. Mostly (60%) on dry and wet asphalt, but a lot on ice and snow , holds perfectly, literally yesterday on the track for overtaking I had to pass through the snow porridge in the middle of the road many times at speed, there are no problems. Today I changed the oil while the car was hanging on a lift, I checked, all the spikes are in place on all wheels! There is no visible wear on the rubber. Some people write about the noise here, I almost don’t hear a difference from the summer one at all, only spikes are heard when braking, so it’s like this technology, when braking, the spike sticks out more. ate, May 2022, changed to summer, drove 14000 km during the winter, studied the condition of the rubber: most importantly, the spikes are all in place! the front wear is more, the front drive still works more when braking, these “legs” of them are almost worn out, the wear on the rear is almost invisible, I’ll change places for the next season, I still recommend rubber)