I have the Dunlop "Winter Package" tires on my car in USA, as I wanted the Winter Package and drove through Wisconsin winter/snow (least on the nicer days).
They work "fairly good" in light snow, not "Blizzak good" though.
They work very surprisingly well on roadcourse too! I put Panther XP12 brakepads and a midpipe on car, and went to my local 4 mile track Road America (lucky me

) and the tires and car performed very well.
Since I had no Track Insurance, and the track was damp from rain overnight on this video, I was taking braking zones carefully with some cadence braking in spots; and most corners were at ~ 8/10ths. You can see some dark damp spots even on the video...
Nissan GTR Road America 2:39 Winter Tires - Car Videos on StreetFire
Having said all that, for my first time on track with THIS car, the tires worked very well, as defined by: very even wear across tire face, no chunking or melting; easy behavior at the limit in VDC R mode; linear cornering g's with steering inputs; very little tire noise; and all considered, relatively little tire wear, as compared to my other heavy car (3000GT VR4/GTO with 600+hp, Yoko A048's, Kumho 700's, etc comparison).
Doing 2:39 on Road America in damp conditions on Winter Package/allseason tires, taking it as easy as I must to avoid car damage possibilities, is great!
Considering I now have 12,500 miles on the car and the tires look able to go another 7-10,000 street miles (?)...WOW. I will be back at Road America the first week of October...hoping to wear the tires off enough to justify junking them and getting Blizzaks for winter 2009-10!
Then next year, I will try the stock Dunlop high performance tires, and hope to turn some laptimes

IMHO, you would not be a fool to TRY these one tire purchase, see if it fits your performance vs longevity balance...