[ComputerPerson]

As a replacement for a desktop user's mouse? No. Could write paragraphs about how it's a special niche, and the device shines in that niche.

I've been in the HCI-enthusiast space due to carpal tunnel for a while now. I actually caused myself to have to have the surgery after going all out with QMK mouse keys, which ended up just moving the problem to a different set of fingers. (So maybe not an expert.)

[numpad0]

The part I'm not sure is if they have precise tongue location working, of if they have resorted to the pad as mostly just hot corners. I don't have that much doubt about the concept.