I have gotten really into using it on my Mac (writing) and my iPhone (reading/updating) but unfortunately it is insanely buggy on iPad when using a keyboard, or at least when using the Magic Keyboard.
Buggy enough that I have to use something else for taking notes with iPad+Keyboard. I've found Bear[0] to be pretty good but not better for my use-case than a less-buggy Notes would be.
Since "ubiquity" and "simplicity" are the two main selling points for standard Notes, this is proving to be pretty annoying: I sometimes write in Bear then copy-paste back into Notes.
[0]: https://bear.app