Only okay so far. I was replacing a pair of Adidas TurboBoost that fit great. These do not fit the same. The toe bed is shorter and the width is narrower right across the ball of the foot, causing the ball of my foot to go a little numb. I also had some trouble with the shoes rubbing the back of my heel (a problem I didn't have with the other shoes), but hope they will break in more over time. So far I have worn these on three runs (3-5 miles each time) and  have not been pleased. I've tried different socks each time to try to get the fit to be better, but they're still very distracting to wear. Luckily the pair I got were only $45, I'd have been very upset if I paid over $100 for these.