I love these tires! I live in the East Bay area in CA. We are currently in the rainy season and I travel 3 hours to Tahoe for skiing every weekend. These tires perform great in the rain, very little hydroplaning and great grip. Dry weather they are pretty good, handle much better when its colder out. As the temperatures creep up around or above 60 degrees they get very squishy and are less responsive. In colder weather they handle the dry conditions great. I have driven in three storms with them now. One was a cross country trip through the midwest (from Indiana to Colorado in a blizzard). The tires struggled a little in deep slush. They were great in both the snow and ice. One thing is my car does have excellent all-wheel drive so this may make them seem better than they really are. I grew up driving front wheel drive cars in bad winters so I was good at driving in the snow on all-season tires. So getting an STI with winter/performance tires feels like having glue on my wheels in the snow. I am not sure how well they would work on a rear wheel or front wheel drive car but the other reviews seem good. I am able to pass easily in snowy/icy conditions. I am not totally sure on the treadwear. Through 3000 miles of all kinds of conditions they seem to be pretty good, and I do push them hard in all conditions. They also handle high speeds very well, had them up to 140 and felt good. They are have a little sway during hard cornering but this was to be expected. Overall great tires in my opinion!!!