Noted on the lack of guidance and onboarding. I can see the confusion you had with the board module and have some ideas on improving it. Thanks for giving it a try.
Piggybacking to say I really like GP's suggestion of a living demo the user can jump right into after onboarding. I'm working on a similarly open-ended product right now and I've been thinking hard on ways to avoid the daunting "what now?" feeling of being presented with a big, unfamiliar, blank canvas.