I loved this. It was very refreshing seeing things from Mo's point of view rather than Bob's; her voice is different from his but no less compelling. She's less jaded, even though she's older and more senior. She's got a vibrancy, and her humour is similar to but not the same as Bob's. She's also authentically a woman; the stuff she worries about is stuff I worry about. The impostor syndrome, the becoming invisible, the dress codes (yes, those who know me, I know I don't look like I worry about those things, but I do. ocietal programming is strong). 
 I loved Mhari seen through Mo's eyes, rather than Bob's. She's become quite an interesting character. And Ramona remains awesomesauce on legs; well wheels now. 
 The plot is, as usual for a Stross novel, creative, interesting, and had enough twists in to wrongfoot me a couple of times, which is always enjoyable. I'm not going to go into plot spoilers because I don't like it when other people do, but I was very happy with it. 
 I'm still waiting for that Chekov's Gun of a cat to pay off, mind, which mind be sort of a negative spoiler - it hasn't happened yet. 
 And a final note: the people who are complaining in their reviews that Mo is a "bitch" because she's not totally subservient to Bob and sacrificing her life for him? Clearly didn't read or understand The Jennifer Morgue, which was four books ago in the series. The point Bob realises that Mo is more powerful, more scary, smarter and sassier than him is the point Bob asks Mo to marry him. He doesn't WANT someone who will sacrifice herself on the altar of his manly manness. The point where things start to go wrong in their marriage is the point where he comes into his powers, because it upsets the dynamic of their entire relationship. Seriously, people, stop it with the sexist assumption what woman must submit to man she's married to. Please?