The humanity aspect and storyline isn't too cliche. The character both the good and the hateable are relatable. Honestly most medical drama made by korean are great. The age gap isn't put in just for the sake of added 'drama' but shows how maturity really shape a person.
This drama has one of the healthiest couple/relationship in kdrama, and i've watch a lot. The couple really do take their time, and not in the bad way.
I ended watching this and left with a void, now i'm seeking other drama with dating scene as well written as this. Their healthy relationship really set them apart from other drama's character.