A fun and satisfying conclusion to the "Embers of War" trilogy.
It would be difficult to talk about the specific details of this book without spoiling various aspects of it, and the previous two, so I'll simply say that I had a good time reading "Light of Impossible Stars." For me, it was a solid step up from "Fleet of Knives," which while enjoyable in its own right was a bit less impactful than "Embers of War" had been. It gets a little over-the-top and hand-wavy at times but in ways that serve the overall story and are fitting given the "epic space opera" genre it so clearly occupies. Still, there were plenty of the more quiet, intimate, and thought-provoking moments that drew me into the series in the first place, which ultimately overshadowed any minor issues I had with the more "fast and loose" elements of the tale.
In short, if you haven't read the "Embers of War" novels and you're at all a fan of science fiction, I'd highly recommend all of them. Each book has its own distinct feel and tone but they work together nicely to deliver a complete and worthwhile reading experience.