As the author states himself: This is the book equivalent of a pop song and not meant to go very deep. With that in mind, it was entertaining to read. The characters are a bit flat and predictable, the story needs a lot of suspending one's belief from the reader (so much that even Scalzi needed to make the main character explain what the literary term "lamp shading" means, in a meta-nod to his own story). If you're up for something light with a lot of quips and pop culture references, I recommend to read this book.