The Hong Sisters like to make their shows a bit confusing with all the back-and-forth plot shifting. It's like this for almost the whole drama: the leads' relationship is going great and then they fight again for some reason or a new development throws them off, ruining all the fun the viewer is supposed to be having. It gets extremely tedious after the main characters' third or fourth time they spend depressed or in angst because of silly misunderstandings. I think what I disliked the most in 'Big' is how the plot threw me around, and how so much happened in a mere 16 episodes that the ending was rushed while there were still unresolved threads of the story. I will complain about the ending several times here so keep that in mind. The premise of the story, to begin with, isn't at all original. Body switching? It's been overdone. I wasn't interested at all but my cousin basically sang praises for this drama and she kept telling me to watch it so we could fangirl about it together (no way that's going to happen now). I wish they'd given Shin Won Ho a bigger part, besides just being a sleeping beauty (as he was dubbed in the show itself) for almost the entire show. I think they missed the whole point of the body switching since I felt like Gil Da Ran fell in love with Yoon Jae anyway because of how it ended. I can't even rant about how upset I am by the ending because it's one big spoiler but trust me, the ending sucks (and for the record, I did understand it but it was too incomplete and unsatisfying). Okay, I think I confused those of you who don't know what I'm talking about enough. I have to note Gong Yoo's great acting here. He was just a victim of a bad storyline but he did wonders acting like a 30 year old man in the beginning and then an 18 year old. He has improved loads since the last drama I've seen him in (which makes sense since Coffee Prince was 5 years ago). Bottomline is: the man knows how to act. Really well. Alright, I'm ending this review because I can't really rant much since then we'd be getting into spoiler territory but I don't recommend watching this show. Edit: I'm not saying I didn't have fun at the beginning before every thing was ruined, and I'm not saying it wasn't ridiculously funny at times, but in the end, it was even more disappointing to watch because of that. So I don't recommend 'Big' because the disappointment you'll get is not worth spending 16 hours of your time on this drama. If you want to watch a decent Hong Sisters drama, then watch 'My Girlfriend is a Gumiho' but otherwise, stay away from this one.