Last winter they were great on snow. Only had to chain up twice. Once going up to Crater Lake, and once for only part of the pass going over the Santiam.
This winter is a bit different. I'm putting alot more power to the ground. I had them siped which helps alot. Wish I'd done that last year. I also let the pressure down to 20psi in the really bad weather. During last week'* deep freezes here, I was one of the few cars even ATTEMPTING to get around town. They do well.
The directional tread really gives them the chance to build in some better traction. Most definitely GET THEM SIPED!