Yup. Same reaction. No explanation + "Book a Demo" -> KTHXBYE
The concept is interesting. In our experience with regular and top teams trying to do notebooks for runbooks.. there are a lot of gaps around the Jupyter UI specifically and the concept in general. It's a fascinating problem to work on.
We just launched the website and are moving fast to incorporate some of these suggestions to make the docs experience better.
We have tried to solve the problems with stock Jupyter. Would love your product feedback as well!