I started this drama without reading any of its reviews, since I noticed there was big fuss in the mismatch of its regarding opinions, so I wanted a clear head in order to make my own. The story is very complex; it's a lovely, bittersweet, bloody tale that makes you experience wide range of emotions during it's progress (I went from being downright furious at one character's behaviour to loving him)! As such, it will not be very easy to watch, and at times, it'll maybe make you question watching the rest, but I would recommend holding on, because this is a drama that everyone should see. Actors are great, I like the supporting cast, the main villan is a well-written character (for a change) and even Lee Yong Suk, whom I have never seen in a drama before, has done a pretty damn good job and his acting is very believable. Loved Yoon Sang Hyun in this one, partly because of his wonderful character, but even more so for the life he gave to him. I like the main OST, it fits the drama well, and the overall music was not that bothersome, not even in saddest scenes. Also, this is one of the rare dramas I would recommend watching again, because there is much to be reminded of when seeing it; this special set of humane values that we may often misplace when throwing a fit in anger or being disheartened by daily happenings. I think the biggest proof of a good drama or simply, a well-executed story, is when it just makes you feel so much; regardless of it being bit too long, having a few fillers (1-2 episodes), or giving a somewhat naive plot (there were plot holes which did NOT have justification)...But, the overall carried me into this world that I am glad I've met, and though there is a significent age difference between Lee Boo Young and Lee Yong Suk, hell, I didn't even care. This just serves as an example that some other dramas and movies with this kind of couple could've done a lot better. Recommended.