I'll start by saying the plot doesn't bring anything original to the table. Now with that out of the way...
Everything from character development, makeup, typical clichés, romance, and the comedic scenes are exaggerated to such a degree that you cannot help yourself from laughing out loud. The show is pure entertainment and sometimes it makes you wonder whether it takes itself seriously. The smooth transition between plot development and outrageously funny scenes is nothing short of brilliant.
This goes on for the first 8 episodes or so. Once it transitions into the later stages it takes a sharp turn towards typical Korean rom com. Which isn't bad in itself but it did leave me sightly disappointed. It left me with the impression that it started incredibly strong and ended on a low note.
The chemistry between the couples is one of the show's strongest points. You can clearly tell they are extremely comfortable in each other's presence. The portrayal of both a conservative and libertine couple is also well done with ample screen time to develop both relationships.
I would definitely recommend it if you're looking for a light hearted romantic comedy with a unique sense of humour.