At first I refused to watch this drama because all of the guys on the cover were wearing track suites. Eventually I realized what a stupid reason that was not to watch what looked like a really great drama, so I watched it. The story is complicated but easy to keep up with. The first five episodes of this drama are ABSOLUTELY HILARIOUS! then it evens out into a more engaging story line with a lot of really funny parts, but less extreme on the humor. That's okay though because it's still entertaining and the plot really sucks you in. The acting was good. I shouldn't really judge cause I cant tell the difference between good and bad acting unless it's REALLY obvious, so it must have been okay. The main girl and four main guys are really fun together. Like, so great that even I can tell ;) Didn't really care for the music but they didn't play anything out of place. I would (and probably will) re-watch the first five episodes any day and all day! But now that I know how the mystery ends I probably wont watch the whole thing over. That being said, I did finish this drama some three days ago, maybe in a month I'll have a sudden desperate need to watch the whole thing played out again. But probably not. Over all as soon as I finished this drama I just sat stunned in my chair for a couple of minutes thinking "Wow. This was AMAZING!". I waited a few days before writing this review just to be sure it truly is that amazing. Trust me, it is. Warning: bitter sweet ending! Side note: Don't worry, they lose the track suites eventually :)