Only about 20miles on these so far, but a solid shoe. My feet feel secure and locked in, plus the breathability is great. A little bit of heel slippage, but not noticeable when running. My only complaint is a blister on the inside of one of my heels, to be expected with new shoes I suppose. Before these I had the Saucony Grid Stratos 4s and I was going through a pair about every 120miles (three pairs in less than 6 months!) so I upgraded to the Saucony Triumph 9s. Little did I know they had dropped the heel to 8mm which literally left me tripping through my first SR. So...out of desperation I had the Triumph 8s expressed asap in order to break them in just ten days before my first HM. These have the standard 12mm drop and will get me through the race and post-race transitioning to the 8mm drop. Again, so far so good for a neutral+ shoe. Love good ol' reliable Saucs, especially for making gigantor size shoes...11.5! Moral of the story: plan your shoe mileage before the big race day is on the horizon.