I enjoyed this drama quite a bit as it does something that is not seen in most dramas. Having an older female lead get chased by a younger man is quite different and refreshing from the usual older man chasing a younger woman, it changes the perspective and shows the worries of that kind of relationship.
The acting is done very well to portray the innocence of Joon Hee and Yoon Jin Ah does a very good job of showing the struggles of liking a younger man.
The story is quite similar to most romantic dramas but the role reversal keeps it interesting and makes you want to keep on watching to see what happens in this adorable relationship.

If you do not want to stray too far from the usual rom-com but also want a slight change this would be perfect for you :)