Though I'm not french I've been living in France for almost 10 years and I speak french. I think I can understand why french people is hating this series. I presume they're looking into details that non- french speakers won't take notice: accents, way of acting, rhythm, dialogues, etc. The french viewers and filmmakers are used to other kind of stories and language (in addition, french people love to take down their own work! You won't never hear them saying "this is good", they will say "it's not bad/c'est pas mal")
The series is worth the watch. There's an evolution in the characters that might have been done better, but acting and script it's not as bad as critics have said. Not the best series I'll see this year, but I've loved it as it radically changed from most of the other options you have on Netflix: American or British productions.
I hope there'll be a 2nd season.
