What I liked:
1) The main actors were excellent.
2) Original storyline.
3) She got over being a doormat quickly.
4) Mix of the old and new.
5) They didn't harp on the fact that she was older than him.
6) Some cute moments between them.
7) Some cute cultural difference exchanges.

Not so much:
1) Lacking in the romance department. Lots of ancillary stuff going on.
2) Even at the end, he was still calling her "teacher".
3) Too many episodes.
4) Not a lot of emotional feelings between the couple. I felt like they were telling me they were in love, rather than showing me.
4) The killer for me was the ending. What the heck!?! Neither one of them seemed very upset about going their separate ways. Obligatory (stupid) one year time jump, and he shows up in Paris out the blue. The fact that he was in traditional clothes led me to believe that he was just visiting and would go back to his own life. Nothing drops a rating faster for me than an ending that sucks.