It is my firm belief that the Fangshi Shuangren V2 is better in all ways than a zhanchi just by a hair, and is also smoother and more controllable than the v1. If you are willing to pay only a dollar or two more, get the fangshi v2. it is so versatile, it can be crispy and fast or smooth and controlled. I also average low 20s and high teens and this is a perfect cube. I have yet to try the maru cx3 yet though, that looks promising, i'll have to order one soon.