It's summer so I can't rate snow grip and traction. I wanted a tire which gave good dry traction and good cornering for a type of driving that is not hesitant but respectful of speed limits. The P7 so far (about 2000 km of driving) is satisfying my requirements and hopes and expectations. The comfort and noise level are amazing and traction is not sacrificed. If these qualities remain throughout the tire life (I hope to get 50000km + out of them) then I will likely be a Pirelli customer for a while.
In one word, so far, thoroughly convinced and satisfied.