- Both the slides although being the same size slightly differ in length. I continued using it since this difference wasn't that noticeable, but this still is a problem.
- Within light usage of a week, its sole was squeezed and reduced in width reducing the amount of cushion it offered when it was new. Note that I'm a thin person, still the cushion was compressed permanently. I wonder how comfortable would it be for people who are on the heavier side.