Come on people, this is a story about married life, cheating and struggles of couples. Of course it is not your typical romance drama that makes you feel great. But I think this show has been written quite well, I liked the pacing and the acting and besides the small side plot with Sa Pi Youngs mother (why should I even care, I do not understand why this story fits into the drama) I really think the story lines are interesting!
I also like the changes of perspectives and the way the story is told. You slowly get to know each character better and learn about them. For example I liked Boo Hye Ryung in the beginning and judged her husband but in the end even I understood why things happened the way they did.
The audience for this drama should be of a certain age to understand it I think... it's not just about evil husbands cheating on their wives, in my opinion it is about so much more than that. And it is also not a makjang-type kdrama like The Penthouse series... it is much more realistic and with less drama.