This seems like a fair, well-written and in-depth biography of Hood, who does not come out of it looking great, in my eyes. I had never heard of him before, but he seems to have made a lot of good choices early on in his life, and was certainly part of an early wave of the latest era of big labs at prestigious universities.
Most of the book is not about the science he or his lab did, a lot of that seems incidental to the various political maneuvering and business deals Hood was doing. This seems about right for what I'd expect from a prestigious academic, since running a big lab like this seems mostly to be about convincing people that what you are doing and what you have done is important, and you delegate all the actual doing of stuff to other people. As I'd expect from someone who was very successful at this, Hood doesn't seem like a particularly great person, and at least mildly ruthless. I don't think I had to read between the lines too much to see that.