This cube is very smooth and flexible. When I first got it, like most Moyu cubes, it was way too fast to use but with lubing and breaking in it got to a usable speed and turned into a really nice feeling cube. The only negative thing I can say about this cube is that the dual adjustment system only allows for quite loose adjustments to be made so if you like tighter cubes then you won't be able to find the settings that suit you.