Firstly, I have "bad feet", so my review clearly doesn't apply to people who don't have foot problems. I liked these shoes from the start. Very light and true to size. At the gym, however, after 40 minutes of training on an elliptical machine (with special inserts), my legs started to hurt a lot. I don't know exactly what the problem was, but I think the cushioning just wasn't enough for people like me. So the shoes obviously didn't fit me. I had to send them back. Although they can be great for others.