As far as these kinds of books go, this was fine. It covered all the bases you expect like the careers of the main people involved and some of the conflicts that arose during the making of the game. However, the story just isn't that interesting, especially if you've read other 'making of game x' before. Some of the anecdotes were fun, and the few snippets of arguments that went into design decisions were great, but even those were pretty much what I expected anyway.
So if you're a die-hard fan of the games or particularly Blizzard (there's quite a lot of content about Warcraft), this account will fill in a lot of details about how things were done back then. For the casual gamer with a nostalgic itch, the recollections of certain levels, monsters, and characters should bring back fond memories. For everyone else, there's not too much else here to recommend, unfortunately.