He redeemed himself a bit with the nonfiction part of the T-Rex chapter, but man, that narrative tone and his "I'm the greatest thing since sliced bread and I'm best buddies with all the cool kids in paleontology (even the long-dead ones)" attitude seriously grated pretty much from page 1 to literally the last words of the book.
Also, pro writing tip, Mr., um, Dr. Brusatte: If you seriously think it's a good idea to begin a chapter with a dramatic, pseudo-fictionalized scene involving T-Rex and a bunch of other dinosaurs, and you're telling it from the POV of one of those other dinosaurs, you'll want to avoid describing T-Rex as "a monster bigger than a city bus". Because I'm pretty sure a dinosaur would have had no idea what a city bus was going to be looking like some 66+ million earth years after the extinction of its own species. It's all about narrative perspective, you see ...
Oh, well. Next!
Read for the Flat Book Society and the New Year's Eve square of the 24 Tasks of the Festive Season.