I'm not a fan of cheesy romances so I didn't really care much for the relationship between Lee Gon and Tae Eul. In fact, I wanted to fast forward their romance scenes because I found them too dragging. That said, if you're into that kind of thing, you might consider watching for that reason. I have friends who did enjoy the drama for this purpose.

Despite my disinterest in the main couple, I try not to give up on dramas right away. I found the side characters to be my redeeming factor. Many people have probably mentioned Woo Do Hwan's impressive acting as both Eun Sup and Yeong. But I also enjoyed the Sin Jae, JangMi and Nari's appearances in the story. In fact, Sin Jae's story was one of the reasons I kept with the show when they started dropping hints about it.

The main plot of the story was my main disappointment. As the story progressed, they kept dropping all these hints that felt like they would be important. But then they didn't quite connect and didn't actually lead to any grand conclusion. I guess it helped when Lee Gon explained the math behind some of the events but I felt most of these were not relevant in the end. The whole time traveling concept also left a lot of unanswered questions.

It didn't help that the last episode seemed rushed just so we could see more scenes of the happy couple in the end. I wasn't very satisfied with the ending for the other characters either.

All in all, if you're a fan of Lee Min Ho (which I'm not) or Kim Go Eun (she's okay) and cheesy romances, but don't mind sci-fi mumbo jumbo, you can give this show a try. Otherwise, I suggest you skip this show.