The software is the definition of bloated, and it has accrued multiple bugs that would be in show-stoppers at any other software house (silently failing to save data; selecting and deleting text actually deletes exactly twice as much text as was selected, consistently reproducible; and many more).
They also use dark patterns in trying to get people to pay (confusing options, multiple prompts, hidden close buttons).
Particularly insane is that you can't export all your notes - you have to do it one notebook at a time (and each one takes a strangely long time if you have a lot of notes).
It is obvious just from using it that it's being run by a team with neither the experience nor dedication necessary for a cloud-based synchronizing store of user data.