You're essentially holding a large tablet upright, but all the weight is taken up up the base. Rather than finger-painting, try holding it on both sides like a tablet or gamepad and operating with thumbs.

Scrolling/controlling checkboxes and switches feels GREAT. Depends entirely what you're using it for.

I had a laptop that folded to 180, without touch screen, and had a webcam hidden under F7 so it either looked straight up your nose or showed your huge fingers