Recently purchased these tires for my 11' Sonata at the beginning of the winter to replace a set of Yokohama Avid's that were just awful. Right away I noticed a substantial difference in ride comfort, smoothness and noise. We live in Colorado where the weather can change in a matter of minutes. With the first snowfall I just had to test them out on the twisty slick mountain roads and they performed beautifully. Light snow traction was great and deep snow wasn't much worse. They are no dedicated winter tire but for your average driver that doesn't push the limits, these tires are all you need.
I also had them out in a pouring rain storm. Tried to get them to slip but it was next to impossible. To get these tires to fail you in the rain, you'd have to be driving in a way that almost no tire could handle and TRYING to wreck yourself.
Recently, we got caught in a bad snowstorm on the highway. It was perfect timing after the storm started but before the plow trucks could get to it so it was nasty. Whiteout conditions and easily 3 inches of heavy wet slushy snow on the roadway that hadn't been plowed yet. These tires were solid as a rock! My traction control never even had to take over. I felt safe that these tires would hold their own in bad conditions and they did! Highly recommended tire for the casual driver.
As for treadwear, I just inspected my tires after the winter and I see almost no noticeable treadwear. All siping and everything still there. I think these tires will last.
If your looking for all-season flexibility but don't want to sacrifice too much in the snow, these tires will get you around.