At the beginning I didn't want to watch this drama, just because I thought that it was going to be a full action-everything about the army kind of drama, but thanks to my best friend, I gave it a try, and I can tell you that I don't regret it, at all.
First of all, the story is interesting and somehow special, since I haven't watched a drama like this one before. The effects were amazing as well, it did feel like I was watching a movie in the cinema. The actors played pretty well and the emotion were getting to me through the screen. Something I didn't like was that the first episode started weird, I didn't really get the point of the beginning, but after watching episode 10 I guess, or something like that, I realized why did the series start with a darker scene. If you don't like emotional dramas and sad moments, I do not recommend watching it. It does have a lot of funny  moments and it is somehow a comedy, but some scenes are kind of dark and they can make you really emotional. 
As a conclusion, I did enjoy this series and I will happily re-watch it in the future.