I didn't like the ending. I had no problem with Da Ran and Kyung Joon ending up together but didn't like how they got there. They should have swapped back sooner. If this supposed to be a drama about younger guy and an older woman, then put them back in their own bodies. They sugarcoated the romance by keeping Kyung Joon in Yoon Jae's body. In the end, when it was finally time for them to live happily ever after, they wouldn't even show his face. If they themselves don't buy into the love story, they can't expect the audience to do so either.
Too many details were handled off screen. There was no interaction between the brothers. Nothing between Kyung Joon and his family. I would think those were equally as important. I think Yoon Jae gets royally screwed over. He spends practically the entire drama in a coma and when he returns we don't even see him once. The drama wasn't about him but I think he at least deserved one final scene with Da Ran in which she gives him the ring back and they both move on. All we (sort of) get related to him is when Kyung Jae tells Se Young to try approaching Yoon Jae again when he returns. Yoon Jae knew Se Young since college. If he hasn't paid any attention to her all this time, why would he do so now?
Big starts out really promising. It starts dragging after they get halfway and then it just goes nowhere until the end. Frankly, they ran out of story after ep 10 and the next 5 1/2 eps were fillers. I think it would have been better for the brothers to swap back at the airport (end of ep 8) and then fight it out for the girl, with Da Ran finally choosing Kyung Joon. I want to give the Hong sisters the benefit of the doubt. I've liked some of their previous work. Maybe this isn't the drama they intended to make. I get the feeling that several people had their hands in the cookie jar and ultimately changes were made along the way.
I don't know if this says a lot about my viewing this drama or about the writer's writing, but until I read your post I didn't even realize this drama was over! I guess not seeing the usual "thanks for watching" or that most dramas I watch are 20 episodes, finding out this was the last episode took me by complete surprise, I thought the whole point of this drama was what would happen when Kyung Joon and Yoon Jae switch back and yet we never see this happen and in the end we never see Kyung Joon's face and the switching back and forth from the past scene with the umbrella and the present scene was confusing-- it wasnt until I took note of the shirts the guys were wearing that I was able to keep better track of the scene. I feel sorry for the actor who played Kyung Joon-- he basically acted while laying in bed all the time! I liked him in the begining and was eagerly waiting for him to come back and see him act as Kyung Joon again. I did like the scene with Yoon Jae holding Kyung Joon's hand and telling him that he was going to wait for him before he pursured Da Ran. I think I would have like this a lot more if the switch had happened earlier and then we watched all the relationships change. I didnt really care for the relationship between the other two teachers, and the person that was hanging around Da Ran's parents. Even Ma Ri and Da Ran's brother just seemed to be thrown out there, where if the switch had happened half way thru, maybe they could have ended up together, Da Ran and Kyung Joon would be together and Yoon Jae and Se Young would be together instead of things just being thrown together at the end. I liked when Kyung Joon was talking with his mom as she talks about spending time with her son after he is out of the coma and cooking meals for him and Kyung Joon just gets a shy smile on his face knowing that his family is going to get together in the future.....this too was an important part of the story to me-- seeing the family come together-- brother to brother, mother acepting her son-- it was important when Da Ran was wavering in her trying to decide who she wanted to be with, but the it wasn't really developed the way I wanted it too. I actually thought later that if this was an American show, it was ended the way it did because the writer's were thinking more about the making money on a sequel than how to make the original story a complete story! Not happy at all at how this ended. I amost feel cheated out of a story.......so sad