I have changed my rating from 5 to 2. I really liked the 623 sneaker. It fit my foot well. I especially liked that I could buy the shoes at amazon and not have to worry that they would fit. The sizing was consistent.

Here is the problem, the last pair of shoes I bought caused me to fall twice. The back part of the shoe arch (on the sole) grabbed the raised concrete on the sidewalk. I took a step, felt the shoe grab the concrete and not release. I fell forward onto my hands and knees. I was walking briskly and the fall was so hard my face hit the sidewalk, too. It was like someone grabbed my foot and didn't let go. It was a very painful experience.

I thought, well that was a fluke. I'll be more careful. Unfortunately, the same thing happened again two weeks later. I wasn't walking as fast so the fall wasn't as bad. I came home and threw the shoes away. I haven't fallen since.

Be forewarned. These shoes are a potential fall risk if there is uneven concrete where you walk.