Unromantic. It's the fragmented story of a generation ship's crew that leaves Central America and finally makes landfall on a tough planet. Most such stories are adventure stories, or at least intrigues of politics or love, and so all romances or Romantic. This ship was commissioned and crewed by a Society of Friends, Quakers, and they succeed by concentrating on "the boring parts". Endless meetings, crowded quarters, and no idle hands at all: everyone does what we would think of as two or three jobs, skilled ones, often one technological and one agricultural; and when sitting around jawing they're always shelling beans or teasing fiber or something.
It sounds interesting, although exhausting. After Biosphere turned out to be harder to run than expected it seems realistic that a spacefaring ecosystem should take such constant, detailed attention. Definitely there are more hours spent worrying about the balance of insect species than about the solar sails; unsaid, and slowly obvious, is that the machinery is simpler. Farmers once agree to carry branches from flourishing plants to feed an ant colony that's moved to a rare hedge, for instance. They don't want to lose the hedge, or even the ants, and they don't know why the ants moved so they don't risk trying to persuade them elsewhere.
The ecological detail is not overwhelming, though. I'd have liked more, e.g. in the discussion of A and B soil horizons on the new planet.
The cover blurb is from . I am now cogitating on whether Le Guin ever was romantic; less so than most people who write fantasies and allegories, certainly, and maybe not at all.
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So wrote clew in SF&F.