Some reviews call this show magical or something beyond expectation. As a person without any foot or knee problems, there is nothing for me to really rave about. What I like about this shoe is that from the moment I got it there was no breaking in period and no blisters. Nothing awkward and no disappointment. I feel like this shoe gives support without overdoing it. They are not heavy and they have good ventilation. I run on pavement and track. Also some treadmill.  I have had them three months now and they are in pretty good shape still. After three months of running with these, I am thinking at this point, that I will buy these same shoes again. With sizing, I bought my true size in a wide. These shoes run on the snug side. The 9.5 was too snug and the 10 was too big, so the 9.5 w is perfect. I tried them on in the store (that didn't have widths) before buying them online.