First of all, Hyun Bin's awesome. I love most of the dramas/movies he's been in so I recommend checking him out. This drama is another awesome drama he's been in. Song Hye Kyo and him together are adorable. It's a very realistic storyline. Some craziness does happen in it but none of those unrealistic type of things that happen in other dramas. You can actually imagine this happening to real people. So, I thought the storyline was awesome and so was the cast. I've rewatched at least part of this drama several times so I think it's very rewatchable. I hope people give this drama a try and really enjoy it as much as I did.