I can't help loving this man. I can't believe I'm saying that about an astrophysicist but he's just awesome.
That said, I wasn't as impressed with this book. I really liked some of his others, his writing style is incredibly conversational and he's full of fun facts to show and tell. But this book felt very jumpy to me, like he was talking to me but rapid fire and changing trains of thought too fast.
That's not to say I didn't learn anything from this book. I learned that America is doomed. (Just kidding, kinda). He's saying what I already know: America is falling behind and losing the traction that we once had. For whatever reason, the high and mighty people don't think we need to explore space anymore. That the STEM studies aren't as important.(Science Technology Engineering Math). Tyson has the perfect counterpoint to the argument "We need to take care of the people on Earth first". When that asteroid comes barreling towards Earth? You'll wish we had invested time and money into space.....
He included lots of Tweets of space facts into the book which were (almost) redundant. I follow him on Twitter anyways so I've seen a lot of them.
Read the book because it's Tyson and because it's NASA, but be sure to read his other books too.