Likes:
1. First, their names were too funny!! So Insung, Jo Ji Sub, Wang Sora, Kim Tae Yi, Gong Moo and Song Ae Gyo ??
2. I liked the story of working hard for your dreams, that there is no short cuts to success. But at the same time, you should strike a balance between work and life and health.
3. I think their relationship failed because they both weren't confident about themselves and they neglected each other instead of supporting each other. When the going gets tough, it's good to have friends and family around to lessen the stress rather than push them away.
4. Only 3 episodes so worth to watch if only for Yoon Si Yoon!!

Dislikes:
1. I wasn't sure what Insung liked about Sora because she seemed like the kind of girl that was always sad about life. Episode 5 had a lot of flashbacks about their relationship and i wished they showed that in episode 1 so that we root for them. Most of the time i want Insung to get over Sora and find someone better than her.
2. I didn't understand why Insung had to go back to his nerdy self just because the experiment is done. It's just a matter of fixing his hair and wearing better clothes.

Rating: 8/10