About the Windmill cube in general: Four of the centers have orientation, this fact and the little "weirdness" of the shapes are the only extra challenge of this cube compared with a normal 3x3. There are not reapeated pieces in this cube, and all of them have one ans only one correct orientation, so you will not find "parity" problems in this case.

About this version: Good quality, smooth, not noisy and cheap.