It's really helpful and informational, however it feels like an overview of the subject, which is fine for those who are interested in the basics, but I was looking for something with more depth, hence the loss of star.
However, it does contain a lot of important information and I have highlighted, marked-up, dog-eared, and tabbed a bunch of sections for future reference.
This would be good for anyone who would like a better understanding of speechwriting and important things to consider while giving speechs, handling interviews, questions, and technical difficulties.