Just finished A City On Mars, by Kelly and @ZachWeinersmith. Normally, I'd call a critical examination as severe as this one on space settlement a "sober assessment", but this book's way too damn entertaining and funny to ever call sober. It's also very much needed- as a former space settlement fanboy myself, there's WAY too much blind optimism in those spaces.
Fantastic book, highly recommend it. Already got a copy for my youngest brother, who's an even bigger space nerd than me.