Yeah... for me, my vision is rather deteriorated, just looking at the size of things in the screenshots I can tell I'd have trouble using it. I can't even use the Steam Deck for that reason. At least my daughter and SO get use out of it.
For about 5 years before Android/IPhone, I used a nokia phone that opened with the screen in the middle of a split querty keyboard on the phone... that thing was perfect for notes/text. I really wouldn't mind something like that or even this device as long as the text could be set to something reasonable for my poor vision to use. I have to max out my accessibility/text settings on android and that's a stretch at times (also exposes so main UI failings).