[_ea1k]

Yeah, it definitely isn't good enough to be used unsupervised. TBH, they've switched to eye and head tracking as the primary mechanism of attention monitoring now. It seems to work pretty well, now that I've had a chance to try it.

I'm not quite sure what you meant by your second paragraph, but I'm sure I have my blind spots and biases. I do have direct experience with various versions of 12.x though (12.3 and now 12.5).