I personally think that this cube performs OK and has a very buttery and somewhat silky smooth feel to it and performs good. The corner cutting is about line to line if it is well broken in and anymore will cause the cube to pop. Has the ball mechanism similar to the Rubik's brand 4x4 but just overall better obviously. I wouldn't recommend this cube unless you are a collector or just buying a new 4x4 to learn on. Thanks, that's my review :)
