Not really a novel, this is a collection of shorter works with bridging material. The weakness is that the first two thirds fit together nicely, but the final third is very much a separate tale, a sequel separated in time from the earlier parts. Because this final tale closely references material told in other volumes, that makes it an awkward fit.
On the other hand, as an explanation of military action in a science fiction setting, it is excellent, and one of the combat sequences is a retelling of a historical incident from the Korean War.
So, if you like military science fiction, told well, then you will enjoy this volume, even with its minor flaws.