If you are looking for some well-written historical dramas then you can give this a chance. Oh no, you should!
This is the first time I've watched a really fun historical drama and didn't come across anything "annoying" or "want to skip". In fact, I wanted this drama to have a season 2 or an extra episode or spinoff, or whatever.

Why do I say this is the best "all-in-one" packaging? Here's why:
1. The story is not cliché and more "real life" related. In some dramas we can see that there are always "too good characters" and "too evil characters", but I couldn't find them in this drama. Everything flows like real life, each character has a reason why they are and it makes sense.
2. The chemistry between all the characters is superb! Especially the main leads, insanely good! This kind of romance suits their character very well. On the other side, about family and friendship are also really touching.
3. I really like the fight scenes! The fight scenes in this drama make your heartbeat move so fast. Sometimes 1:1 with romance scenes, LOL.
4. The setting is very cool. Not a lot of CGI, so make you feel like this is real and more natural.
5. The production really worked hard to make this drama such a rare gem. How do they use sophisticated items and how they take every scene and do the editing.
6. OST. Jesus Christ! All the OSTs really make this drama lively and beautiful. Each OST is unique and has a specific suitability. I The sound effect was great too.
7. I also praise the TLB team for each BTS. It's so funny and makes me fall in love with this drama even more. Interaction between actors and actresses, how they enhance each scene, they improving, and enjoy the shooting.

And many more, i can't say again more than this, if not, i can explain it for more 365 days (jk) :D
So, just watching and you will know that this drama is worth it!