I ran in these for about 7 months before they really started to break down. They were great as far as fit and comfort, but being a bigger runner (6'2 and 240lbs), I think I just wore them out. I don't expect to get a lifetime out of a pair of running shoes, but these fell apart a little quicker than I expected. They had good support and fit, just not longevity. I am switching to a pair of Brooks Beast's, hopefully the extra weight will mean more durability.