Has everyone else given up?!
I've finished watching now and my main take away is that, with the exception of one character, everyone is just not a nice person!
I think the problem for anyone who watches a lot of crime dramas that is is quite hard to make one that doesn't have an issue or plot line that has already been used.
And in the end many of these crime dramas are about families, both internal dynamics and interaction with other families.
As I couldn't work out who the culprit was I watched to the end, and in fact prefered the more low key approach, and not having endless acts of violence, and car chases and all of the high octane, macho cliches.
And think given the last few scenes they are thinking there may be a third series.
Just to add, I later started watching the recent episode of Grace, and in fact that was so tragically silly and implausible, I think it made me think this series of Black Snow was quite good. Even in having everyone being so unsympathetic.