It’s a mobile computer but tiny! So it gets used everywhere where I need a small computer. I don’t have a “smart”-phone, so the pocket is how i go online when I’m mobile.
On long train rides, the tiny pocket keyboard fits tiny-people hands better than big-people hands:
I use the pocket to do lecture recordings for the third semester in a row now. I so far have recorded over 60 hours of full-hd video with the pocket. Very reliable. Not a single time did it fail:
My Pocket has the RK3588 while the classic which I’m typing this on has the A311D. The latter is too slow for some games, so I did my Factorio play-through on the Pocket:
Showing it off at local hacker events:
Be the one stable computer while all the others are being taken apart:
It’s the pocket reform so it sits in my pocket. 
EDIT: the photos above are a bit older, so here is a photo of a few minutes ago with a new use-case I have since I bought a second-hand portable monitor: watch some streams on the side while I am busy doing other stuff
The pocket is a good computer. Only very few rough edges and missing features. It’s certainly a stable part of my daily life.