This cube is a really great into to edge turning puzzles. If you want to learn the curvey copter this is a great one to start with because it is a bit easier and you learn some of the concepts that work on a curvey copter.
It turns surprisingly well and smooth as long as the layers are aligned. Which can be difficult at first because the jumbling moves are hard understand at first.
It is surprisingly big. It is closer to the size of a typical 4x4 than a 3x3 which isn't a bad thing!