Week 4 with these shoes and so far I love them. They are replacing my old salomon trail runners that I've been loyal to for 5 or 6 yrs. Easing into the minimalist running style takes some time, but I have less aches in my knees and back since making the switch. These fit more snugly compared to other shoes; I had to size up for the pair I run in. I kept the other pair to wear to dental school because they're so comfy and light. The performance is great on road and on reasonably smooth trails. My only gripe is they don't have quite enough protection against the sharper rocks I encounter on the trails in Arizona.