It's short and doesn't take too much time involvement, but while I was watching it, I kept wondering how soon before it was going to be over. Overall, my complaints were with the writing.

1) My biggest gripe is the way the FL is written. Desperate, clingy, immature - I got the feeling that she was more afraid of being alone than anything else. To try to hang onto someone that doesn't want to be with you is so sad.
2) Cha Hun's acting was really bad. His face remained emotionless, his movements were wooden, and watching him try to act was just uncomfortable.
3) FL and her best friend - he's stuck with her through NUMEROUS relationship disasters. Their relationship was cute to watch, but her having that many ex-boyfriends would give me pause before getting involved with her. She's kind of a "love the one you're with girl." Basically, I had a hard time believing in a romantic relationship between them.