The tires have about 30,000 miles on them, a few thousand more to go. The major weakness is traction in ice- icy-snow conditions. In pure light to moderate snow, they have been ok. Wet conditions, very good. No hint of hydroplaning to date. Ok in the dry, reasonable sidewall stiffness, though they are not pure summer sport tires. Of course, all season tires are a compromise to begin with.