as a huge NFL fan and big fan of the Mannings I wondered how much of this would be truly "untold". I walked away pleasantly surprised to learn significant new information about the QBs, their current and past QBs and the rivalry. Like Myers said in his conclusion, you can't go wrong with either QB. Except, I'd say, when it comes to pranking. Then I'd avoid both.
As someone who is less of a PAts fan, I enjoyed the new-to-me info on Bledsoe being "Pipped" and some of the back story of Brady's UM career. Like Myers' other NFL books, a great read