How is the Wooting wrist-rest?!

[blazing pagoda]

My personal opinion is that I couldn't do without the wrist rest and that I don't experience stickiness when sweating.

Can't get the grey one anymore since it's not being made, so that's unfortunately a moot point

I'll follow that up with, if you do sweat a whole lot and are actively moving your wrist positioning around frantically while gaming, then you will eventually start to wear down/degrade the food-safe coating on the wrist rest. When that happens, it starts to develop a sort of shine where the silicone absorbs a bit of the sweats and oils.
I have not seen any case where this happens within a year, even with extremely heavy use, but figured I'd mention it.