I had a full set of these on my old Bora as winter tyres. I thought they were excellent tyres. Dry handling was good and even acceptable for spirited driving. The rather flexi tyre walls and tread blocks made the car squirm quite a bit when cornering quickly. Wet handling was superb - the aggressive tread pattern evacuated very large volumes of water, making the car feel very planted. I drove once in snow and they were very good. The car had very good traction and were controlled under braking. In my final year of ownership of that particular car, I left the tyres on through the winter, spring and into June. They are classed as "all season" and they certainly did the job. They held up to temps in the low 20s and the handling in the dry did not really degrade either. The wear on them was also very good - for over 6 months of motorway and town driving, over 300 miles a week, shaved off about 4mm.
Highly recommended but I think you will be hard pushed to get a fitter to fit them without asking if you are sure of fitting tyres that look like they belong on the Alps.