In case you are wondering whether to watch the show based on these (really harsh) reviews, I would say please do. the main actors did a phenomenal job, and as a saeguk watcher the parallels were really fun to watch. the comedy was top notch. While there are some plot holes, it is an entertaining watch.
Impressive ratings! For those who loved The Double, is this drama better in terms of storyline , chemistry and…
This drama is better than the Double in terms of story telling, visual direction, pacing... The acting is really great, so many great side characters. Bonus if you liked Li Meng (the grand princess in the Double) : I was hypnotized by her performance in ATC so much that I will follow her career closely and pray to see her as a FL in a future drama.
Struggling a bit with the pace and writing on this one. It has a lot to love: really good actors, budget, really good special effects on the fight scenes but I am a bit disappointed that the emotional scenes do not hit as much and the pacing is really awkward at times
POB has been a disappointment for me. I expected a serious political drama with tension and high stakes, but it…
I definitely agree on the political aspect - I was expecting high stakes and epic fighting scenes but was a bit disappointed in that regards. I would argue that this is definitely more of a romance/idol drama
I've mostly watched Korean historical dramas, so I didn't know if I'd like it, but I really did! The story and…
I am also in your situation where I mostly watch saeguk dramas. Prior to POJ, I watched The Double which had incredible music and cinematography. The main thing lacking for me was the fighting choreography and excessive use of wires in the beginning, but other than that it’s a great series !
K-Drama 
the main actors did a phenomenal job, and as a saeguk watcher the parallels were really fun to watch. the comedy was top notch. While there are some plot holes, it is an entertaining watch.