Meet Day. I want to marry him some day so let's refer to him as my future husband. He's strong, kind, funny and perfect in so many ways. And the government want to kill him. This alone would make a pretty damn good book, but no no, this book takes it way further. 
 The book has got split narration that compliments the other really nicely. It helps us get inside scoops on both sides of the spectrum and allows me to admire Day from another point of view. 
 I could wax poetic on the many ways this book kicked ass, like for example the free-running/parkour stunts near the beginning. But I think you need to just read the book 'cos it was good.