This drama stayed unpredictable and super fun to watch for all of the 16 episodes, consistently. There are no dull moments, it's a whole package with amazing acting and a solid storyline.

The setting of the drama, made me see a new perspective altogether. I have never thought about the medical aspects of a prison and this just opened the door to that. The topic of stay of execution was new to me and its actually very creative how they used this topic and made a whole drama out of it.
The characters especially the 3 men, showcased some top tier acting! It was so fun to see such gray characters being selfish and playing mind games, you could never guess what the character will do next or whose side they'll be on. The show had a lot of strong woman too, very cool, composed and strong. The woman didn't have a very important role though, still whatever role they had they killed it.
The way its shot is also very unique, the whole show has hue undertones making it look dark and grungy, setting the mood for the show.
The soundtracks and the occasional beeping added to the thrill and was a very good addition to the show.
Now onto what I disliked about the drama, the show tried to include comedy for no apparent reason, the show without the unnecessary comedy would have increased my ratings. These scenes just made me cringe more than laugh. I laughed and smirked more in other scenes that weren't considered "light and funny scenes". These scenes ruined the whole mood and could have been easily cut out.
There are some characters that were just there for the heck of it and weren't given the spotlight, these made me wonder why they were doing what they were doing. It would have been better if they were given a story too.
Other than these points I enjoyed the drama and always looked forward to watching the next episode.