People have a lot of problem with this drama, and that's okay, but I love this drama to death. People say that this drama has absolutely no plot, but I wouldn't say so. The plot of the drama is a struggle between Gangnam Beauty (Kang Mi-rae) and the natural Beauty (Hyun Soo-ah), and a reflection on the idea that despite not being born pretty, Kang Mi-rae is the one who's prettier on the inside, i.e. she's the one that holds the true beauty.
The main couple (Do Kyung-seok and Kang Mi-rae) are incredibly cute, and seeing their love evolve throughout the drama was a treat. I can understand why you think it may be boring, but to me it was a really nice, well-paced, cute, and pure love story.