It's very well made with some good character acting, good cast and the CGI effects are very well done.
However, for me it deviated so far from the original plot lines in the book (I re-read it while watching) as to almost be a different story. In fact I've stopped watching the series about episode 7/8 as it had drifted so far from the book.
Shame as I'd been hoping for years someone would do a decent film/series of a William Gibson book.