I tried these as a softer alternative to my UHK wooden rests.
I appreciate more cushioning, but the sensation of a “floating” rest that shifts as you type is very odd. We’ll see if I use these long term.
These come with teflon feet installed, but I recommend the included silicone ones to keep them from flying around.
I wouldn’t recommend these as any sort of mouse wrist rest given that they’re too high and not height adjustable.
NatethUpdate: I used them for a few months and grew to like them quite a bit. Installing the silicon feet kept them from being knocked out of place. The key to using them is resting your palm or wrist such that their center of gravity is aligned with the magnet's center.