I appreciated this book more than I expected, given my strong disagreements with many of the author's politics. Although Bolton comes off frequently as pompous and as having rather an inflated idea of his own opinion, never missing a chance to throw in a questionably-related quote or criticize pretty much anything Obama did, he also pulls few punches when it comes to Trump's behavior and provides some pretty valuable insights into how Trump comports himself "behind the scenes". So, despite the politics and arrogance (not to mention his irritating misuse of "beg the question" to mean "raise the question"), I'm glad he wrote it and I'm glad to have read it.