Well, it's a bit hard to use on your lap. . . not to mention the batteries to power them things are huge! ;^)
It’s on my lap all the time. I don’t know why you say that. It powers with the regular cube batteries, and I keep them all over the house because they charge everyone’s phones super fast. I’m sure there are applications like gaming and analysis I couldn’t do but I don’t need them. You’d have to pry my iPad Pro out of my cold dead hands.
The first couple weeks I found it “too big” and heavy but I’ve adjusted and reg iPads seem like phones to me now.