Loved the story, the cast, their acting, the ost, the chemistry of all four leads with each other, the relationships they formed, the development in their lives over the course of the show, EVERYTHING.

LOVED Lee Jun-Ho's chemistry with every single person in the show, LOVED THE FATHER SON BONDING MOMENTS BETWEEN HIM AND HIS ACTUAL FATHER, AND ALSO BETWEEN HIM AND DETECTIVE CHUN-HO, in most of those scenes I was sitting with a big smile on my face!!!
LOVED watching Madame Jin, her role was perfection, and the actress was tailored for it and I loved watching a woman in a role like that.