(I use g-Force T/A KDW-2 for summer tires). The RE970AS are used late fall to spring. These tires are great, low noise and better cold weather grip. Noticed that they get quieter after a short warm up time, (mile or so). Lots of grip with hard driving, predictable hold and can tell when they are about to break loose. I'd recommend these for all season use, (except I'll still use ultra high performance tires for summer). Can't tell about wear, I haven't had them long enough.