“The narrative is amusing, especially for Star Trek fans. It is difficult to comment at any length about the narrative without risking inadvertent spoilers. Let's just say that it is indeed funny and at the same time ironic.
The final three sections of the book, beyond but related to the main plot, are also entertaining. Told in the first, second and third person they offer a look at the "aftermath" of the original narrative.
The first of the "supplementary" sections is a lighthearted tribute to writers, their rebellious characters and how to deal with them. It's also a blatant admission, albeit tongue in cheek, that Scalzi is not the first to use the narrative premise while at the same time giving it his own twist.
The final two sections represent a touching exploration of the survival of love and a departure from the lighter tone of the main narrative. Again, to say too much about these sections would be a disservice to the reader. Let's just say that Scalzi has found a clever and touching way to weave the separate pieces into a nice tapestry.”