Very amazing series and great acting.
Song joong ki is seriously so cool. I've become a fan of him.
But overall good story, a bit over exaggerated with the army things but not too much.
The ost is also very good.
If you want something where the protagonist is just cool af with a mix of action, this series is for you.
The romance of the side characters is a bit annoying though.
But the main pairing covers it up with their chemistry.
I wish the antagonist was a bit more "powerful" though if you what I mean.
He's not bad in character but he's not been given enough characterization and plot for us to hate him that much. It's very stereotypical.