Have not read the book yet, which I'm now very curious to get and read.
I think the acting was awesome, the dialogues were deep and well prepared, the characters were on point. Seemed at some point that there was no "filler scenes" at all, everything was important to watch, so it's definitely not one of those Series you can stop watching for 5 or 10 min without missing important information. Personally I'd have loved a different ending (longer more explained) but it was still very good.