I got the Pro for two reasons: the screen-size (for use as a 2nd laptop monitor) and because the pencil was only supported by the Pro when I bought it. I don't

I got the Pro for two reasons: the screen-size (for use as a 2nd laptop monitor) and because the pencil was only supported by the Pro when I bought it. I don't use the 2nd screen as much as I thought I would though and there is a good chance any of the other iPads (which are all smaller) would have been better for me. Hard to tell exactly what size has the max utility. Smaller isn't better necessarily because my iPhone can do pretty much all of the same stuff but is too small to be useful. A good heuristic might be "large enough that the keyboard is comfortable".