The Mirror 2x2 Cube is a great and easy puzzle for those looking for a shape shifter. It is 57mm making it the same size as a standard 3x3 mirror cube. The turning is great as well. It is very fast, for whatever reason, and produces a smooth feedback. This can even corner cut as well. On normal, it is great; but, reverse corner cuts are rare in existence. The mechanism seems to be a simple 2x2 speed cubing design that fits well with the puzzle. The stickers are fine as they are and had no problem with them chipping. Overall, it is a great non WCA puzzle.