First drive on the SottoZero3's in actual winter conditions and I'm extremely impressed. They're not foolproof, but the grip and control on ice and (light) snow is quite impressive. My first time on winter rubber, I wasn't sure what to expect. Wow, I'm a convert.
No issues getting around with RWD. Even small snowy/icy hills that appeared to be challenging for other cars and SUV's (all four wheels spinning) was not a problem for me.
Also very impressed at how quiet and composed the tires are on a very cold, 5-degree (F) morning.