When I first put this shoe on it felt so comfortable and fit so nicely.  I love how they look and was eager to wear them to work and try them out.  The first day I wore them I came home with blisters on the back of my heels.  After the blisters healed, I tried them once more on a day with less walking.  This time I didn't get blisters, but they still bothered the back of my heels a little.  I think they will become more comfortable as they adjust to my feet, but I will be cautious about walking a lot in them for a while.