It's totally worthwhile, but it depends on your interests.
I originally subbed, for all things, to see Penn & Teller teach the basics of magic. I've since moved on to learning about cooking and how movies are made from the best in the business.
I also enjoyed the book. A very nice addition of the course are some mock negotiations that I think really help illustrate many of the points. I would recommend at least you watch those, the rest is true that are mostly highlights (I watched them anyway, it was a nice refresher).
It's totally worthwhile, but it depends on your interests.
I originally subbed, for all things, to see Penn & Teller teach the basics of magic. I've since moved on to learning about cooking and how movies are made from the best in the business.
You can get a feel for what is offered here: https://www.masterclass.com/categories
I'm not affiliated with them in any way.