Definitely worth watching it. Believe me I am a person who is extremely difficult when it comes to watching dramas, whether it's korean or chinese. So believe me when I tell u it was good. The actors, the acting, the chemistry, the ost, the storyline, the characters, the costumes, the bromance, the scenes everything was a jewel. It was extremely difficult to forget the drama and the feelings that are portrayed in it and the roller coaster of emotions that you're going to feel.
The only bad thing was the special effects but it doesn't ruin it at all. You get used to it. It was difficult for me to follow who is who so I had to go back to episode one at the first scene to recognize the faces and the names. But it was totally worth it.
I 100% recommend this drama