Great book. Classic of course. When I first started a couple years ago, I learned out of 5 lessons. I'm still learning from it today. The book answers all those little questions a new golfer might have. Just following the recommendations on getting a good grip and rotating the left hip to start the downswing got me off on the right foot. I went from hitting sporadic shots with no clue what I was doing to hitting quality shots with some regularity, at least for someone starting out.
Now, my only criticism of the book would be the chapter on stance and posture. I recently struggled with my game, and am just now getting out of the funk after about a month of struggle, largely due to the setup. I feel that the chapter on setup is not exact enough. There are some general basic things, but there is a lot of room for variation. For instance, I struggled for a long time, and still do with how far to stand from the ball. I don't think Hogan mentions much on how far to stand, even though it's seemed in my experience to be a crucial part to the success of the swing overall. Also stuff like knee flex - the closest part is the reccomendation of sitting on a bar stool, about two inches below the bottom. So knee flex is mentioned in that regard. Also, the hands at address and shaft lean at address. Hogan just reccomends the ball to be placed off the left foot, but how about the hands? At the belt buckle, up near the left hip, toward the back hip? Anyway, all those little details about setup plagued me for a long time, and even though some of them are mentioned in a roundabout way, that is my only criticism of the book.
Altogether though, there's no filler, and Hogan writes the book with a tone of authority and certainty that instills confidence.