The Gear-cube is a brand new concept in cube design. Using a full gear mechanism that requires twelve 90° turns to complete one rotation but having said this it is still slightly easier then the Rubik’s cube.
A first solving reward is getting the puzzle to its cubic state. This is relatively easy.
A second solving reward is getting the puzzle to a state where each face has only two colors (of opposite faces).This is a bit harder, but achievable for many people.
Hardest is solving the puzzle as a whole, which is still easier than the original Rubik’s Cube.