The hien is very rough, feels like a carpet and imo probally have the most uncomfortable surface for a softpad.The hayate is very comfortable, but you have to remember it's a completely different kind of mousepad. It can be very fast
It definately provide more grip than the kana v2. The xai feels of better build quality although the sensei raw more than makes up for the difference in build quality if you add the lower weight and better sensor performance.
If you had seen some of the posts earlier I think you would understand why. Some people love spreading untrue and potentially harmful rumours. And then theres some people who dont understand it was a beta and not the full release