Really, really enjoyed this book, though i'm not sure if it's really because it's outstandingly good (it's definitely plenty good though) or because it hits all my favorite space opera buttons - lots of extra terrestrial geography, fleets of spaceships, varied quasi posthuman space colonization, etc. All of it is well written and well plotted, and I liked the characters too (look, lots of women and none of them are whores!) though sometimes it seemed as though their motivations and arcs were spelled out in the narration more than being shown by their actions. A few subplots seem more like setup for the next book too. Which i'm going to go read now, so that may be a minor quibble.