If someone was deciding between this and a MoYuy Aosu to be their main 4x4, and they had a hard time deciding, I could not blame them at all. This cube is almost as good, if not, as good as the MoYu Aosu.
Corner Cutting: outer layer corner cutting maxes out at roughly 35-40 degrees on normal tensions. Reverse corner cutting on the outer layers is quite poor at about 1/3 of a piece. Inner layer reverse corner cutting is roughly 1/3 of a piece as well. Loosening the cube would make the corner cutting better, but pop slightly more.
Due to the lackluster reverse corner cutting, it can catch quite a bit.
The cube rarely pops on normal tensions, but on tensions where it catches less less, it pops more.
The inner layers do move slightly slower than the outer layers, but not to the point where moving both layers at the same time.
It feels quite buttery and smooth with a subtle bump.
Overall I'd recommend this 100% to anyone looking for a new 4x4, and if you don't like your current aosu, I'd consider looking at this one. The only problem I really have with it is the catching, and it isn't solve ruining. It's amazing for the price, and it's good for anyone.