I just finished it and I've got to say: I just read a review saying that it's too stressful to watch cause the characters are so hateful and let me tell you: YES, THEY ARE. AND THAT is what I absolutely LOVED about it. Never have I ever hated characters so much in a Drama before and wanted justice so bad. The main lead is a strong woman/female lead which you just want to go off. And that is what I absolutely got. We followed her through her ups and downs and got to feel her emotions, reactions developments and even failures in the most realistic way. Even the side characters stories were delivered so well. Since episode one I was immediately hooked through each and every episode. Another thing I loved is that in my opinion it also greatly did not follow the usual K-Drama-Route with certain events. I just can recommend anyone to watch it and of course, judge for themselves.