I would consider the long haul anything where I actually have to be looking at the screen for more than an hour. This would be fine for plugging into a projector or quick 5 to 10 minute things, but anything that would be actual computer work is out. When I was younger and could read the small print on medicine bottles without effort sure, but like Steely Dan says, those days are gone forever. I now consider 14” to be a minimum useful screen size.
This thing would be the berries for taking into a crowded wiring closet for switch and router configuration and diagnostics.