I really don't know how I came across "Hyde, Jekyll, Me" but I decided to watch it after reading the summary. The first five episodes or so were kind of boring and didn't have any action to keep me motivated but since I don't like to drop things I continued with the series. The plot started to move and it was interesting for a while but then things started to get dragged. This whole series was like a big wave. It went up and down and up and down. The cast wasn't bad, but not good either. One of the main characters (Seo Jin) didn't appeal to me at all in the beginning (looks, acting, character). I found him dull. It was the opposite for the other main character (Ha Na). I was looking forward to watching her more. As the episodes went on the roles were reversed. Ha Na became a character with no personality whatsoever. She just seemed to stand there in most parts with no emotions and no thoughts, while Seo Jin was full of... life. I am one of those people who actually never liked Robin. Seo Jin should have had more moments with Ha Na. Robin and he, to me were the same person and I was looking forward to seeing the moment Seo Jin would get himself under complete control. That's why I have the opinion that the series should have ended right when the mystery of Dr. Kang's disappearance was resolved. Still I enjoyed it and would watch more of Hyun Bin's dramas, hoping that they'll be better.