This book is an excellent read for scientists because it is an easily absorbed history of science, about which not a lot of active scientists have nuch knowledge. It is far from comprehensive, of course, because it is not intended as a general treatment of the subject but certainly should improve one's understanding. Focus on a few pivotal characters and their interactions with colleagues and issues of their day gives a readily absorbed, rather journalist framework. The actuality of that framework is perhaps dubious, but as an aphorism about journalism goes, "first simplify, then exaggerate".
Following the line of journalist aphorisms, "good news is no news", characterises the entertainment aspect. The author by no means sinks to the level of reality TV but, as advertised in the title, it is about rivalry and conflict. Not inhabiting the more rarefied levels of science, it is impossible to say if the rivalry is exaggerated; it is impossible to say, however, that we "toilers in the field" (ex-toiler in my case) do not occasionally backbite/stab colleagues, but I suspect the rivalry is exaggerated and instances of altruism and cooperation have been minimised. I thoroughly enjoyed and approved of the kicking the author gave Aristotle!
I was impressed by the author's erudition, but was shocked by the error he makes in the Bill Gates section about ASR-33 teletypes being computers! It rather undermined my confidence in what he had to say earlier! So that one part of the book should get a very low rating (the star scale is about liking, not accuracy). I can say, however, that his section on WWII Japanese atomic research was reasonable, because I confirmed it while revising my historical novel, The Japanese Observer (2012).