The first thing I noticed was that these are HEAVY!  They weigh at least 3 times as much as normal shoes.  Since I was planning to take these traveling, this was a negative.
But the weight became a moot point when I put the shoes on -- or made the attempt to do so.  The plastic resists feet, so I had to struggle just to get my foot inside the shoe.  The band around the top is so tight that it was painful from the second I managed to get one foot inside of one shoe.  And the shoe is much smaller than the size I ordered.  (It is marked with the correct size, but it does not fit like the correct size.)
I never even stood up.  I wrestled off the one shoe (as difficult as putting it on) and began the return process immediately.
I will never buy this brand again.