Do you have a list of integrations, both working and planned?
How well does it play with markdown?
What is the format of the drawings?
Am I blind or is there no info on the database system?
My biggest problem with notion is its reminder system - if you change the time of a scheduled item, the reminder is removed, even though it was originally defined relative to event time and should thus be easy to recompute. Or do you not have schedule/calendar system?