OTOH you get version history, with commit messages if you care to write them. And the full power of git to explore the history. You can edit the same file on two (offline) devices, then resolve the inevitable merge conflict.

"Automatic bidirectional sync between all devices" scares me. How does it deal with merge conflicts? How am I sure I'll be able to revert to a previous version? Can I see the full history of a file? I don't know, perhaps it'd be ok. I certainly wouldn't learn git just for note taking! But, I know how to use my hammer, so everything look like a nail...