Unfortunately the heel area is very uncomfortable. My heels slip constantly (tried different sizes before purchasing the pair I got; bought heel inserts... nothing helps). Could use more padding on the sole as well to help absorb shock while walking.
I am hoping the shoes can be broken in a bit more and will be comfortable enough to wear at least once in awhile. But after two days of what can only be described as mild torture, I am doubtful that will be the case."