As always, great storytelling. Good character exposition through the story, a good pace keeping the reader interested and excited, especially about what could be a boring story. Harris is always enjoyable, and a very skilled writer of stories.
However, at the end, the inclusion of a Muslim plot felt a little forced, and it was a bit disappointing, as the ideologies of the religion were not fleshed out well. It was disappointing to see a writer as respected as Harris disparage Muslims without really offering the reader, through the voice of one of the character's, an articulation or a viewpoint that did not present Muslims as violent terrorists. Just a little sympathy would have been enough to not show Muslims as a homogeneous group of villains; this surprising lack of sophistication in the writing was a personal turn off for all the author's work entirely.