I saw that this book was pretty well reviewed on here so I decided to check it out, since I'm always on the lookout for some new sci-fi.
I read almost exactly halfway through before I decided I didn't want to continue, so bear that in mind when reading this review.
If I had to describe the novel in a single word I would go with "hollow". It felt more like reading an outline than a fully flushed out story.
The characters were one-dimensional, boring, and completely unrelatable. For instance, Byron, the main character, supposedly had a rough childhood and therefore was introverted and antisocial, while at the same time being some sort of cocky troublemaker. But without describing any real instances of Byron's past suffering, it's hard to sympathize with him when he constantly avoids interacting with others. Also, the extent of Byron's "troublemaker" trait seemed to be him thinking about doing something bad but not doing it, or getting silently angry at someone, both of which seemed like completely normal things for anyone to do and hardly worthy of being called "troublemaker" traits. Really for the majority of the time the characters are just mouthpieces for extremely generic, wooden dialogue.
My biggest qualm with the story was the lack of any real conflict to keep me turning the pages. Everything just fell neatly into place without any real suffering or sacrifice on the part of the characters. For example, another pilot is particularly antagonistic towards Byron... Will he try to sabotage Byron somehow during a mission? Will he gather a group of friends to beat Byron up and smash his joystick hand? Will he train hard to match Byron in skill and be an interesting rival? Nope, he'll hurl a few juvenile insults before failing from the academy a few chapters later, never to be seen again. Or, as another example, the trainees are presented some new challenging scenario. Will Byron fail this scenario? Will he ever be in danger of failing this scenario? No, Byron always does everything perfectly and the author never really gives the reader the doubt that it could be otherwise.
There was also an absurd lack of detail. It's fine to leave some things to the reader's imagination, but give me something more to work with than the color of a character's hair. Characters either looked normal or "weathered", and for some reason everyone cocked a single eyebrow a lot, which was about the extent of their facial expressions. Maybe it's a Cassan thing. The lack of detail extends to more than just description, the reader really has no sense of the Cassan universe, Cassan culture, or if there's even a war going on. Around the time I stopped reading, which I think was around page 120, was when there was finally a few alien races mentioned, before which I really had no idea of what the pilot trainees were preparing themselves to face.
The final thing I want to touch on is the fact that the entire cast is male, save for Byron's sister who appears for a few pages at the beginning. If it weren't for Byron's sister I would've assumed Cassans were an exclusively male race, as women are never even mentioned for the rest of the book. It's fine to have a story with no love interest, but it just seems unrealistic to exclude females from the story entirely, especially for something like piloting spaceships, which theoretically women would be able to do as well as men. If the author at least mentioned that the military was male-only I would've been more understanding, but we don't even get that, so we're just left to continually wonder why Byron never comes across a single woman.
I realize that this review is rather scathing, but I'm not under any illusion that my opinion is the correct one. It's just an opinion. I'm sure many people love this book, as evidenced by the multiple positive reviews on this site, but it just wasn't for me.
I will say, though, that the price tag is obscene.