I have a few things to say about this series.

1) It was definitely enjoyable - the storyline was old but good and completely watchable

and now for something completely different (a few annoyances for me - but maybe not for you)

2) Either the dialogue was poorly translated from Icelandic to English or the dialogue itself was just bad - I'm guessing it was mostly the translation (American phrasing and idioms were just bad)
3) It felt like the American/English voice actors kept putting word emphasis in the weirdest places
4) The main character Kata is a horrible detective and maybe even not a very smart human being. Her deductions and decision making were just bad most of the time. As a detective, her character should have been fired long ago. On the other hand this might have simply been the most realistic portrayal of a real live human being doing her job as a detective.

Don't jump down my throat for items 2 thru 4 as I'm probably just in a bad enough mood today to feel the need to mention my annoyances with this show.

Aside from that, I'll most likely watch season 2 if it is made.