I've been toying between this (the i-Pike w409) and the General Altimax Arctics for several years now. Originally I had gone with the Generals for my Altima Coupe and can honestly say that they were one of the best winter tires out there. This winter I had to replace them and decided to opt for the Hankooks instead (just to see how they compare). I've gotta say, they haven't let me down! The road noise is minimal in dry conditions, and the grip when conditions get icy and slick is phenomenal. I love 'em!
At this point, I've only put about 5000km on them and haven't noticed any wear, even though they do seem to be of a softer compound than the Generals.