I was excited about these because they look like shoes you could wear with a dress.  The fit was very poor.  My right heel slid to the inside and after about two hours I had pain in my ankle, knee and hip.  Luckily I had my other MBTs in the car and after about a half hour I was better.
Tried them on this morning to see if it was a one day occurrence - after about 5 minutes the pain returned. I'm not sure if the individual shoe is defective or if the straps just don't fit tight enough to stabilize my foot.
Thank you Amazon for a good return policy!