A series from my father-in-law.
The training is exciting. One reviewer said that they couldn't read more of the training because the kids are tortured as they train. In this case, if they don't run fast enough, they are bitten by a large dog. Also, if they don't hide well enough, an owl claws them. In prior books, they are also drugged as a part of their exam. I can't imagine that working on multiple levels. They were each graded on how well they fought against the monsters they hallucinated. How would those instructors grade them without also seeing the hallucinations? Not to mention drug side-effects, dangers to the kids, dangers to those around the kids as they fought invisible creatures. And wouldn't the drugs affect their balance, coordination, etc ...?
So, yes, the kids are tortured as they are trained. I think it's supposed to be a medieval form of training, without today's perspective on it. (I'm not saying it's right; I'm saying the medieval times were brutal and often barbaric.)
I find the training exciting and unpredictable. Because this is a fictional work, no one is really being tortured or advocating for torture. Even the instructors don't verbally advocate for torture. They just proctor the tests. I find this book situation unlikely to convince anyone in the real world that torture is okay, much less that torture is okay as a form of childhood education. Also, these fictional kids cope with it exceptionally well - probably too well for real life. But they routinely overcome and carry on, which is also what makes the story interesting.
There are unexpected plot twists in regards to the military strategies. Lasgol and Egil's dilemmas are engrossing.
I knew what was going to happen with the characters.
The actual battle descriptions don't appeal to me, and that's a significant portion of the book. If reading about wars is more appealing to you, you might enjoy it more.
I didn't find the part of the story where the Snow Panthers are spies very convincing. I don't think it's likely that they could avoid danger from both sides very well, being in effect, double-agents.
There is also the common "follow your heart" line from our own society, which is a little surprising in a book in which honor, loyalty, and duty are so revered. Those would be competing things to follow, as opposed to one's own inner self. Otherwise, our hearts might say, during the most difficult times, "I don't feel like being loyal today. It's just too hard." Anyway, the "follow your heart" line felt out of place in this book, and more a nod to our more postmodern times.
Our hearts are fickle. Our moods change frequently. Our hearts frequently fixate on things that are not good for us, or those around us. One friend I know calls that her "inner two-year-old." Think a kid in a candy store. Our hearts are easily misled, and we need an external measuring stick or compass to compare them with. I think of the "Adventures in Odyssey" "The Truth Chronicles"series, #5, "In My Image", where someone's heart led him to skip school and steal a cookie from a cookie store, because his heart was telling him he really wanted it.