This is the only 4x4 I have, but I have tried other ones and they are a lot better. Reverse cutting is about 1/64 of a piece, (After I modded it) and the speed is pathetic at best. Just don't buy it. I'd rather use a shengshou.
Too late, I already have 4 of them, the best 4x4 I have is the picube wuque M, which is only meant to be available in China, but agents can ship it internationally and it still works out cheaper than most places.