I haven't had the need for customer support. It isn't the type of software that has a "strong" feature set short of the set that it is needed. I'm currently using the free version which is extremely generous. I'm not sure of the community as I've never looked. Also everything I've checked off accurate wording to a T.
Super native UX!
Easy to use for daily routine and creative processes, such as research, planning, and writing.
It's a kind of multidimensional workspace for thinking and creating something new!
Meanwhile, it can be a usual note-taking app with a great big picture and flexibility.