I started watching this out of curiosity and after the first episode i binge watched the following 7 on BBC I Player. I think that from a technical point of view the producer has captured this perfectly, and i think the actors portray the roles they play as if it was real life.
I wasn't expecting the ending but never the less it captured my heart and in the end i cried at the ending.
Cant wait for season 2 (if there is one)