This is the latest Laundry Files book by Stross, and it has apparently gotten some negative reviews, but I enjoyed it. It changes the point of view from Bob to his wife Mo, which I didn't mind, and I actually enjoyed the story from her perspective. I have gotten to where I enjoy this series so much that I am concerned that nothing too bad happens to anyone so that I can look forward to the next installment. I think this book didn't do any lasting damage to anything.
Unlike some recent non-Laundry Stross novels I have read, it was easy to follow, well-written, and I had trouble putting it down while reading it.