altered carbon: 6/10
i'm having a lot of trouble separating looking at this as a show and looking at this as an adaptation of one of my favorite books of all time, so i'm aware that there is a certain level of nit-picking that is coloring my perspective.
having said that...
as an adaptation: what it got right it got right pretty well, what it changed for the purposes of the different format (and in some cases i suspect copyright reasons) it did very well, but what it got wrong was really frustrating because it was only wrong because it was changed radically from the book, and for absolutely no god damn reason.
i get that sometimes you have to change a story to convert it from book to screen, but for example there are 2 side characters in the book and 1 footnote character who's only ever vaguely referenced... and in the show, they combined 1 side character with the footnote character into a new character but then invented a complete new character who they then combined with the 2nd side character, so in the end they didn't actually reduce the number of relationships in the show they just shuffled it all around and made it stupid.
the radical change to the whole Envoy thing totally demolished the entire point of that thread of the narrative, and disposing completely of the PTSD and other shit kovacs is going through ruined the main emotional thrust of the narrative.
everything expanded about for ortega was utter shit and in many cases completely contradicted the character in the book.
they totally changed several details of the ending of the book for no reason, only to change them back 5 minutes later - felt to me like it totally ruined the narrative heft and confused how everything tied together
as a show on its own merits:
nice production, lots of cool elements, the back half of the show really stumbled and after about episode 5 i wasn't really interested in anything going on, and the entire show came to a screeching halt for a back-story episode which revealed many things which then ended up not relating to anything going on in the main story or having any sort of thematic tie-in, so it was just a total waste of time.
the first half is a good watch, the second half is background noise.
i'll be really interested to see the reactions of people who haven't read the book.