Dull. Slow. No characters to latch onto. If you've read one generation ship story you've read them all.
Was annoyed by Bob and he was inescapable. Future earth geopolitics very silly. Plot itself is not that new or fresh or interesting. Critique of theocratic states lacked finesse.
First person historical science fiction (or alt history) not for me. Reminded me of Diamond Age by Neal Stephenson (which I also didn't like)