They got a tear along the back left heel the first time I wore them -- a bit confusing as I was walking slowly and carefully. I'm an 8.5 and these are a 9 since the 8s were too small, so beware you need to wear thick socks to avoid blisters if you're a half size up or down.
That all said, I adore this pair so much I don't want to take them off when I come home. They're perfect to drive in and make me want to dance! Might be nice if the fastening could be made tighter, but the extra few millimeters means they'd fit the gel pads more easily.