This project deserves huge credit for the excellent tutorial that it opens up to on first launch. It basically opens to an example sheet that you can read and then try out all the basic functionality in place. It's fun, and quickly shows you what the tool is capable of. You don't need to watch a separate video, and you don't feel overly "controlled" like so many over-engineered tutorials that force you to do A,B,C in the order someone decided was correct.

I think this is a great approach. Many people want to "just try it" and this allows you to do that and also get an explanation at the same time.