This has been described as "Lesbian Sherlock Holmes on Jupiter" which is pretty accurate, and the juxtaposition of high-tech future fic with Victorian prose and a grimy urban settings mostly worked for me.  (As with the micro-democracy idea in Older's earlier books, at some point you just have to accept the premise, and go from there.) Because of the retro-futurism feel of the setting, a lot of things we assume in even present-day detective fiction weren't present, for example no instant long-distance communication (the atmosphere eats the wires?), and no surveillance state (security cameras are mentioned, then never discussed again), both of which add to the old-fashioned sleuthing vibe. I generally enjoyed the choices made to make a platform above Jupiter feel like 19th-century Oxford.

The actual mystery worked about as well as any Sherlock Holmes mystery (that is to say my investment was low, and I was there for Holmes and Watson making faces at each other), but I thought the political debate powering it was well played out. At what the tipping point should be between the perfect and the good, conservatism and risk, nostalgia and adaptation. I'm glad that the author is doing another book (books?) in the series, because I want to see more of this world.

Also, the lesbians! I really enjoyed the balance of college girlfriends who'd been too different to work giving it another go. The relationship made a lot of sense to me, and the low-key pining was very sweet. I also liked that the Holmes character being non-neurotypical was something to be understood, rather than fixed.