Put almost 10k on these, in autumn, winter, and early spring, they are great, wet grip is pretty damn good, and even pretty quiet in the wet, wet braking isn't the greatest either, but it is predictable, so you can compensate, dry grip is okay, that's about it, they aren't sketchy at autobahn speeds, and still really quiet, dry braking is again okay, in general they are an okay tire, but their major weakness is in the warm, as they give up a bit too easily, so any vigorous driving will show they aren't a "fun" tire, and are really easy to get screeching and get the ESP light flashing.
in snow and ice they are brilliant, I really tried to get the back end out, but they held pretty firm, with no ESP intervention, and that's without lowering the pressure, they even held firm driving like an idiot on a snow covered motorway, and they were that good, they did give a smug feeling when driving past people still on summers in snow and ice.
from my perspective they work better as a mild winter tire than as an all season, but summer will tell how they hold up when ambient reaches 30-40c, i'm not holding out for decent results, although with my driving the amount of miles i do i'm expecting they'll need replacing before winter.