I like a lot to read; but I struggle trying to finish a book quickly. This one is one of the few that I happen to finish in a record time (for me at least). I've read several reviews of people saying they read it in no more than a day. It actually took to me about 10 days. Reasons? My kids, my wife and my work. But, whenever none of these three "reasons" was asking me to stop reading, I was devoring the book. A standard book takes me several weeks and months to finish (I happen to read more than one book at a time too).
Well, that's "about me". About the book, what can I say? The reason why I "devored" (in my own terms) the book is because I certainly found it way interesting and entertaining. And that tendency was kept from beginning to "almost" end (the last chapter was not as entertaining, for me). I am actually one of those guys that was part of the "doom" generation, with few months of delay (the game came to my country few months after it was released in U.S.A.); yet I was one of those that happened to keep until too late overnight playing doom (in many cases until the next morning, as the characters of the book). Also, I was quite identified with the two main characters: one because his ancestors roots are the same than mines (mexicans, I speak about Romero) and the other because his main concern in his life is the same than mine: computers programming (Carmack), despite the business, despite the money, despite the marketing, the strategy. Programming is his life, doors closed at his desk without interruptions (of course I don't program graphics, yet I program another type of computers systems and that's my main purpose in this life... besides my kids and wife). And both of them passion for DOOM, the game I have liked more than any other (even more than any Quake, way more than Unreal or Duke Nukem).
And, to add to all those reasons, the way the writter describes all the happennings is very dynamnic in "almost" all the book. The way he describes the main characters gives you a seriously real idea of who they are. As some other reviewer critisized, non main characters weren't "well" described. But, so what? is it the story about the others? They're only "incidental" individuals that happened to be interacting with the "starring" guys: Carmack and Romero.
At the very end, however, the "rithm" of happenings is kind of lost when the writter describes what has done recently Carmack besides his passion working at ID. I thought the writer could still make reference to Carmack's "other" hobby while at the same time making enough references to the current status (or the status at the end of writting the book) of DOOM III to keep the interest (that's why I give only 4 stars). I am more than "anxious" to see DOOM III released. Some times I'm afraid of creating many expectations and being quite dissappointed. But, what the hell! The story is, again, way interesting in itself as a biography and as a story of two young successful entreprenurs that could very well be made into a Holywood film (if we got "real life" films like Erick Brokovich, Radio, Pirats of Silicon Valley, and many others, why not the Carmack&Romero "story"?).
Film Producers, don't lose a great opportunity!