I really enjoyed this. After the dip that book 2 represented (imo) this was the author roaring back into form. A gentle study of a place. A unique place. Told through some slice-of-life stories. The Earth died and the survivors took to the stars in ships made from the ruined cities. Then, they encountered a wider Galactic community. This book studies how that place fits into that community. I can definitely recommend this and the whole series.