I was excited for this drama for long time because I am a fan of the Main Leads.
And the first Trailers also seem intriguing.

Cinematography is just okay imo - it's beautiful but I do not think it fits well for this kind of drama.

Plot is just so-so it started interesting but honestly speaking, I was disappointed. It was really tough for me to finish each episode without getting bored. And then it became overly convoluted! Too many things happening, too many unnecessary and additional stories.
It would've been better if they focused on the relationship between the main characters because honestly speaking it just doesn't make sense.
They fell in love and then eventually their marriage didn't work, ML started hating FL. He was even happy to hear that she is dying but then suddenly he cannot live without her anymore?
I wish the writers focused more on their relationship instead of mini backslash. Give us a proper explanation on HOW their relationship turned sour.

And honestly speaking, FL isn't likable as well. Almost every character is unlikable in this series. And just like most kdrama - the emotional negligence of parents are just brushed off in the end. They said sorry and it's forgiven and forgotten