I could firmly say that this is the best drama series that I've ever seen. First of all, the casting for this show was superb, all of the actors were so natural and perfect for their roles. I sang along to the soundtrack all the time and even now, I come back to the OST once in a while. Without spoiling anything I'd like to say that you really need to watch this drama 2 times at least. The first time you're gonna be smiling, talking to yourself and encouraging the characters. Also, you're probably gonna be very shocked as well. The second time, you're going to be viewing those characters a lot differently, but also laughing and hoping for a better ending. Definitely one of the best Korean dramas out there. With a combination of comedy, romance and drama this will be a great series for a 2-day binge :D