Let me start by saying that the main leads are the life of this drama. Solid performance and well acted characters.
How do you surpass the success of a recent Kim Soo Hyun drama? Easy. Make and even more successful one!
No kidding Soo Hyun, always delivers + the remarkable Kim Ji won = Perfect chemistry!
Chemistry is chemistry-ing that we are all anticipating them to be the next real life couple.

This drama also leaves very great lesson about the complex of marriage life. That love isn't always present and perfect. There would be always be hardship but communication is the key to a better relationship.

Side note: The plot could have been better if the storyline was as original as they want it to be but let's be real here. We've all seen this. Surely, this isn't the first time we see a character suffering from illness. Chaebol family who gets dragged out of their company and wealth and a mother-son tandem which is doing all this revenge. God knows for who? BUT the main characters is the one hard-carrying the whole drama to be very honest. Also, it's just me being to salty because why they tagged this drama rom-com when all we doo all week is cry? I mean all of the QOT nations we share the same tears. Lol

Anyways, aside from that I enjoy watching this so much that I will be rewatching until I get sick of it. Lol