MC's characterization wasn't as believable to me as the other books - oddly both paranoid and reckless. But it knits together at the end.
Currently my favorite ongoing SF series - dunno why it's so under read. At least it does have some other reviews here.
Came across another sweepstakes some of you might be interested in: https://sweeps.penguinrandomhouse.com/enter/spaced-out-summer-sweepstakes