I feel like older dramas have some better character development and deeper characters, than the new ones, that's what I like most about this drama. A good thing about this drama is that you likely will never get bored. There are always something important happening, that '' oh my god that's already happening '' . Usually we get that kind of feeling towards the ending part, but not this one. Each episode has something new, and important that catches interest right way. You probably wont get bored.
If you like lasting love stories, with lots of tears and sufferings, entangled with a vengeance plots, this drama is for you.

And I can't review this drama without talk about Ryu Soo Young - The Villain. Oh my god that acting was so good, the character was so well developed in a way that I found myself liking him more than everyone else. Seriously, I guess thats my favorite villain from all the dramas I've watched so far. <3 <3