Well when this started I actually loved it a lot. The cinematography was simply pretty and the whole aspect of airport workers was really interesting. The premise too did seem very novel but unfortunately I do not know why but the drama fell short. After the climax I couldn't really start liking it that much. The last few episodes for me was really a drag. I pretty much fast forwarded the last two. I completely lost interest. The one thing that kept me watching till the end was RoWoon. His beautiful face kept me happy the last 2 episodes.
At least now I've become a Fantasy after this (SF9 fan-club member XD)