I started this drama because I was curious to watch more of Song Hye Kyo's work after falling in love with DOTS. And honestly, I think she did a great job portraying a person who was blind (you know, since she's not blind in real life), but what I couldn't get over was how the story was spiraling out of control and without reason. Nothing much happened in the course of the story, and the Song Hye Kyo's character wasn't really likable because of her bratty tendencies.
I think this tragic love story could have been so much more without the silly over-the-top plot twists that came along with the way the story was being wrapped up. I read a re-cap of the ending and I was so glad I didn't waste my time in watching the remaining episodes because the last "twist" ending would have infuriated me if I watched it all happen.
Overall, this melodrama reminded me of those Latino over-the-top tele-novelas my mother forced me to watch as a kid growing up. The same type of drama that I would roll my eyes after the 2 MC's screamed at each other and then kissed each other passionately at least once an episode. I guess what I'm trying to say is that this drama lacked depth, where the poor execution of plot took away from the things that should have actually mattered for the story to progress.