The surveys are screwy in my opinion. I created a thread about it when I first noticed the issue:
http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3493401/Are_TireRack_Survey_Results_Le
A few days to a week after I created that thread, the survey results jumped again, further improving their winter performance.
Last I checked, the tire has about 210k miles worth of reviews, and one review alone was 60k miles which I believe is one of the reviews that caused the winter ratings to jump considerably.
That being said, I put the tires on my car a couple weeks ago. I went with them because they had them at my local Costco, so I wouldn't have to order them like I would the Continental PureContacts I was also looking at. So far I've put about 700 miles on them, and I can't really complain about anything related to their driving/handling characteristics. My tires have been quiet and smooth, and have given me excellent grip. The only negative I've experienced is a noticeable decrease in my MPG.
I don't know if it's because they aren't low rolling resistant or what, but the car doesn't naturally roll as easily when I take my foot off the brakes, it also takes more gas to get the car moving, and when I take my foot off the gas I can feel the car slow down more than it did with my old tires. Similarly, there are hills leaving my work where I normally just take my foot off the gas and coast down, usually getting my speed to a little above the speed limit. However, ever since changing the tires, I need to keep my foot lightly on the gas just to maintain the speed limit.
It's still early, and if I remember to I'm planning on posting a review of the tires after I've had them for a while. Overall I'm happy with the tires, like I said they'er quiet and smooth, with good driving/handling characteristics. But if I knew they'd be like this when I got them, I might've gone with the Continental PureContacts just to give them a try. I feel the survey results of the Continentals is more accurate b/c with more surveys they've been able to minimize the extreme results that would skew the results of tires with fewer reviews.