I've actually read that book. Well, not all of it, but I have analyzed in great depth many of the games there.
While it's definitely a masterful collection and very insightful, unfortunately it doesn't have an immediate impact on one's game unless you are like a near-master level player. Anyone under that level will fall victim to an unseen tactical device well before those positional concepts can be put into play. I'm sure I'd love this book if I were ELO 2000+, but unfortunately, in terms of actually improving my game, this book and most game collections, despite the excellent annotations, were low yield.
Now spend time with 1001 Tactics and do most of that book - unless you're 2000+ already, you're going to see an immediate, noticeable, and quantifiable improvement in your play. I sharpened mainly with this book for a year, and took down two very legitimate 2000 and 1900 rated players despite a low personal rating at the time of 1400 (likely because I didn't play enough games to get my ELO up.) Another illustration of how studying the right stuff and the right time is crucial for continued improvement, not just in chess, but in any field. Very eye opening - understanding that concept has allowed me to excel in all intellectual fields I've pursued. (I graduated from Harvard and now have an MD PhD, so it seems to have worked very well thus far.)