It isn't her best work. In fact, I'd call it the weakest since Ethan of Athos. She clearly has run out of things to do with Miles Vorkosigan. Overall, the book feels like a first draft, or written from the gutted remnant of an unsatisfactory, largely discarded outline. There's little emotional arc to the story, and it isn't really thematically fleshed out. She obviously went into the project wanting to talk about the politics of suspended animation - the story's set on a planet where they took Chesterton's aphorism about tradition being the democracy of the dead way, way too seriously. But somewhere along the line, the emotional resonance got lost.
Part of it might be the dispersal of the viewpoint among three characters, none of whom are real moral actors in the story. In fact, there is no real moral point to the story - things just happen damned thing after another, and the solution to high-handed corruption of corporate mores is, apparently, high-handed illegalities & exploitation of corporate mores on the part of the good guys. The threats are mostly bloodless, and the resolution is kind of low-impact.
There are signs that the book originally was cast as some sort of heavy-handed allegory in favor of universal government monopoly on