Love this show, forgot about it when it went on hiatus and now, wheeee! I have three seasons to catch up on! Love Mireille Enos.
The show is visually stunning with great cinematography; it somehow manages to make the perma-grey of Seattle varied and, in a way, beautiful. Unfortunately the technical brilliance is let down by almost everything else. The variation on the standard cop show had the potential to be great however the plot develops at such a slow pace as to almost be pointless and the characters seem not to develop in any meaningful way. Linden and Holder are two of the most frustrating leading characters I have ever come across, seeming to make the worst possible choices for themselves at every turn.
The Killing had a lot of promise and the potential to shake up the formulaic world of police shows but ends up falling far short of the mark. I would suggest giving the first two seasons a watch as this is where the show's alternative approach is at its best but beyond that, don't waste your time.