Well, I will just summarize it, to keep things simple. The art is very good at portraying the action, you can imagine the movements really well. 8/10. The story is much deeper than I expected. It sounded AWFULLY REALISTIC. The main theme is war, and fighting, and everything surrounding it is very, very realistic. People die, people you like, die. People you don't like, also die. Honor is nothing but a joke when it comes to war, as it is in real life. 9/10. The Characters are amazing. Not because you love all of them, but because they are also VERY REALISTIC (minus the MC. He isnot realistic at all, he is almost a god in human skin. This is the only big flaw of the manhwa, the MC is so, so strong, and the story revolves around him so much that there are no stakes. You know he will win in the end, always). Their desires and aspirations, their choices and beliefs. I only really, really like the two main characters, Varuca and Ulrich, but that doesn't mean the others weren't really, really well made. 8/10.
THE WORLD BUILDING IS AMAZING. The history before the events shown are very well written, the religions and cultures are very well portrayed. 10/10.