I really can't give any bad feedback about this drama because there's nothing bad to give. Every scene and every episodes were amazing. All the actors acted so well, for the first I felt that the robot was better than human. Such a good story, really sweet and heartbreaking one. I never regretted watching this drama. I felt like I gained another life. The story line wad real strong,really promising. If there are people who don't like it then I'm sorry but I don't know why. This drama grouped up every little things together it made me feel so excited, happy, sad, angry and made me feel so loving. You gotta watch it properly to like it, for those who doesn't know how to understand and accept this unrealistic expectations they won't enjoy this. But for me this was the best drama ever in my life. I really love it. So well prepared and well executed .