It's an amazing drama which has quite an interesting story.
I really enjoyed it, but I actually had dropped it for some time since I have a bad habit of stopping a drama when it gets a little bit boring. I don't like skipping a couple of minutes ahead or even episodes (like a lot of people do for some reason) so I got stuck, but I eventually came back to this drama and wasn't disappointed. I even cried which has become pretty rare for me. The show itself is pretty slow paced at moments, but that's what's appealing about it. The atmosphere is pretty dark and the acting of the whole cast was amazing. All the delivered lines at the very end left me in tears.