Awesome demo, so you deserve some honest feedback.
After the demo I looked at the pricing and immediately decided it's not worth it by far.
From the viewpoint of a freelance software dev that does quite a lot if data cleaning lately, the price is so high that I wouldn't even bother trying it on binder.
As a comparison, I pay €53/year for PyCharm professional that I can install on as many machines as I like and pay for my Excel/Office a similar yearly amount. I switch between 3 computers, so having a license nailed to one of them is a dealbreaker.
Also, $49 + taxes roughly translates to 1 hour of income per month - every month if I use it or not. Plus I'd have to factor in the time it takes to setup and deal with license problems & bugs. Setting up licenses behind a company firewall is quite a challenge - unless you use a simple txt.file license option like jetbrains. BTW, Jetbrains also has a very cool feature in the license model: If you pay for at least a year, you get to keep the last version that's at least one year old for free. From my usage, I estimate that bamboolib could save me 1 hour per month max - currently I just paste to excel if I need to scroll in a larger data set or use the .sample() function to look at some examples.
So to tempt me there should be a freelancer license at a maximum of $49/year that covers at least 3 machines (only use one at a time) and should work offline.
BTW, the companies I work for all have not made the jump to Jupyter labs, yet. They are firmly Excel based and I'm constantly trying to drum up interest for Jupyter. I also do regular meetup talks on Jupyter (where normal business people show up) and many of them don't know that it exists, yet.
So having a very cheap or even free personal license would showcase your program to companies... and you could write the license in a way that companies need to buy a full price version.