I have been using this to take notes in my classes for the past year or two - i write on the screen and organize notes using Evernote .
However, I just tried something a little different last week: I used a XP-Pen Star G640S digital writing drawing tablet for taking notes and found it works just as well if not better than writing notes on the built in screen digitizer because :
you don’t have to flip the screen over to write
you can switch between typing notes and writing equations/drawing diagrams pretty easily
the XP-Pen tablet is much more pressure sensitive .
you can have a try .