I was very impressed by this drama, as it wasn't anything I was expecting and managed to turn out a very satisfying watch each and every episode. Dark and crisp cinematography sets the mood along with a fantastic soundtrack to accompany it. The acting is fantastic, especially from our lead Lee Jehoon, who plays one of the best characters I've seen in k-drama; a sad and soulful eyed bad-ass who takes revenge for those who can't themselves. There are some of the best fight scenes I have ever seen in a k-drama, along with some incredible car/taxi chase scenes.
Was everything perfectly realistic? No, but seriously, who cares? This show is incredibly entertaining, with an interesting mix of John Wick and Daredevil vibes that makes it an amazing show that is extremely satisfying to watch.