I am reading this right now and find it both well written and along with its partner book by Ian Szabo extremely good value. These two books sit right near the top of my worth their weight in gold pile. I would guess I own or have read every book written on apartment building investing written in the last 40 years, and these are great books. I'm giving them to other investors for Xmas.
I thought both also bring perspectives in that are invaluable. All the usual suspects are there in terms of contribution, and all of them are great viewpoints from people really doing it.