Just finished watching this series on Netflix and loved it. Can't wait for series 2.
I watch films and dramas to be entertained and realise they are fiction not reality so a bit of artistic licence is given. Were there elements which made me question the script? Yes, the daughter possibly would be more believable were she 14 or 15 in the script not 13 but as the father of a 15 year old daughter myself maybe I'm over sensitive in this area.
I too wouldn't have minded more foreign language where appropriate accompanied by subtitles but a mass audience might disagree.
I found the characters fully believable and immersed myself in their lives. There was enough subtlety in the acting to allow degrees of hatred, sympathy or identification. The storyline kept me engaged throughout the episodes filling in gaps as it went along.
For me it was a no question 10/10
Watched it without knowing anything about the series in advance.