I've been enjoying my Continental GP 4 Seasons for the past 1700 miles (no flats but I haven't had a puncture flat in over 5 years using a multitude of tires, yes I'm bragging). They cost significantly more than the Gatorskins but mine look like new so far, aside from all the road salt currently coating the sidewalls. They don't ride as smooth as my Vredestein Fortezza TriComps but I didn't expect them to either. They do seem to roll a lot nicer than Specialized Armadillos which I used for many thousands of flat-free miles. Given the similar cost, I think I'll be sticking with the GP4S's for a while.