I upgraded from a 2017 10.5” iPad Pro to the current 12.9” model. Between the larger screen, new design (which I much prefer), and the ability to use the magic keyboard and updated Apple Pencil combined to make this update a much more substantial one than I was anticipating.
I am extremely happy with my device and I hope it lasts me as long as my old iPad did. It is my primary computing device, however I would never give up my Mac.