I wish this had been written later to better incorporate the stuff mentioned in the postscript, but oh well. As it is, I feel like I have to take it with a grain of salt because we only get the author's point of view, and he doesn't seem to see much fault in himself.
I do think this is a really interesting look into not just this musical, but into show business is general. We get to learn a lot about the different people involved and how they work together, as well as how their attitudes toward the show change. But every time I started to care about their dreams to make something amazing, the book would hit me with some more overused foreshadowing.
With all that foreshadowing, I thought there would eventually be more focus on what brought showings of the musical to a close, but it doesn't really end in a place that feels complete.
I am glad this book exists to preserve at least some description of what the first version of the musical was like. It made me really wish I could've seen both versions.