The drama was very well written from the story and the characters. It was promising from the synopsis alone. It put me in a rollecoaster ride of emotions. I really like how the story built up. The writers really paid attention to small details of the drama
There was a good balance in the romance, thriller, and action parts of the drama.

The acting was phenomenal! It's my first time watching Lee Joon Gi and he did really well portraying a character as complex as do hyeon su. He expressed his character's emotions well. It's the same for Moon Chae Won. I could feel the betrayal, love, sadness, and bravery that she expressed in the drama.

The actors' chemistry was also on point. I love how they found it hard to portray a couple married for 14 years but still nailed it. They're actually my favorite kdrama couple!!