I really loved this drama and I really recommend it!!! It's different from other dramas! Since it takes place in France, there's a shock between French/European culture and Korean culture. The drama points out the problems and negative aspects of the Korean culture like the obsession with working, sex taboos, etc.
All the characters are enjoyable (not at first :p) and that is possible because throughout the espisodes, we learn about their personality and about their story! And also, the characters are well developed: we cry with them, we laugh with them, we change with them!
I'm sure I will rewatch it in the future (even though I've never rewatched a drama before)!