IPad Pro owner
And very disappointed. I bought it for the size of screen (reading music on smaller screens is a real eye strain) but must admit I expected the OS to be more than the My First Computer crud that is IOS10. Zero access to the file system means each app has to have it's own copy of a file. So, I struggle to get a PDF onto the damn thing, then I have to import it into the sheet music app. That's the same file, now in two different apps. Updating/version control, forget it. If I use email and want to send a bunch of files (say, PDFs to the rest of the band) I have to send a separate email for each file. I can attach as many pictures as I like, but if it's not a picture I have to "Export" each one from the PDF app, and it creates a new mail each time.
iOS, should be spelt POS.