In overall, you can learn from this book and use it as a reference after that. But after couple projects, I believe you will be an expert of what is written in the book. Just for beginners, as I said, and for the MS Project Core exam.
I didn't give it 5 stars as there were a few minor errors (maybe 5 total) in the text, or very confusing transitions in the instructions.
I would definitely recommend this to anyone who is either new to Project, or has used it but is not sure of themselves. I'm thinking of going through the book again, just to reiterate the lessons.