Goshawk Squadron is very accurately described in the reviews above (or below). While the tale is a brilliant war story, accurate and rivetting, it is, like all of Robinson's work deeply antiwar. The stupidity and futility of war could not be clearer.
The writing quality should be used as a model for all aspiring novelists. Everything is perfect.
Finally, you as reader, need to answer a question after you read the first chapter. Did yo it serious? Funny? Rolling on the floor, laugh out loud funny? If not the last, you're too tightly wound, and must immediately read all of Robinson's work. That should cure you of most ailments. He's that consistent, and that good.