One thing is that you can put one note only into 1 category. There is no "tag" system that allows multiple tags per note. It also only supports text notes, so

One thing is that you can put one note only into 1 category. There is no "tag" system that allows multiple tags per note. It also only supports text notes, so if you use drawings, etc in Keep a lot that might be a problem. What I really like about it though is its simplicity and that I can easily run my own instance (of Nextcloud which I use anyways).