1. The mouse pad surface does not have a built-in edge to prevent the mouse from sliding down, which is dangerous especially if the mouse is wireless.
2. Perhaps it should have a slightly larger width. Someone with a larger build might have a problem, especially when their feet are placed in a specific position that reduces the width between them.
3. Stability doesn't win any awards, but I appreciate that it's not easy to find something better. Perhaps it should be heavier for better quality, but that is probably sacrificed in order to make it easier to transport, especially by the so-called weaker gender.