I was entertained by this book, although I think it suffered a bit from "what even happened in the last book and do I remember anything?"
On the one hand, Scalzi does a good job with the intrigue and the suspense and the stuff happening. On the other hand, I've been reading a lot of space opera that thinks deeply about the science and the way that culture would and would not change based on what is available. And this, while fun, felt shallow. That if I jumped in and dug further, I wouldn't find much there there.
Moral of the story is don't read other space opera after reading Bujold, apparently.