This show changed the way that I judged military dramas.

Acting: 10/10
The acting in this drama was amazing. Yang yang once again proves what a powerhouse he can be.

Storyline: 10/10
While this show has quite a bit of propaganda, most military/special forces dramas have some level of "we are the greatest, most powerful, smartest country in the whole wide world" mentality. I would urge you not to drop or skip this show just because of that.
The storyline follows a young man that is desperate with a capital D to prove himself the strongest after a traumatising experience as a child and his father's very ineffective way of handling it (IMO).
One thing that I LOVED about this drama is that Yang Yang doesn't get to just coast through as the top dog. He's talented (extremely so), but he doesn't overpower everyone automatically. He struggles to appreciate the value of other people's contributions, setting himself above everyone else. He learns the hard way that, in order to succeed, he'll need to rely on those around him.

10/10 recommend.