Can't comment on tread wear or snow performance, but these are more than competent in the wet and dry conditions they've been used in thus far. Road noise is reduced vs the Conti Contact Pros that we ran previously, fuel mileage is actually improved despite a wider footprint and there's been no distinguishable handling loss. Can't rate them a 5 given that we have a summer 'extreme' performance tire for autocross use, but for an everyday all season tire they're exceeding what I expected.
Good on dry pavement, quite good in the rain and a mess in the snow, particularly in packed snow and "greasy" conditions. Haven't had them out in icy conditions yet, nor do I plan on doing so.
To be clear, I wasn't expecting the performance I've had from some of the more boring, all-season tires I've had on the car in the past, but I was expecting something that would get me through the winter in a serviceable manner.