It was cancelled by NBC after 13 episodes, but has been picked up by TNT who are going to film a third series with a planned ten more episodes but with substantial budget cuts.
I watched it, but felt it was very uneven in tone. I hope that if they cut back on some of the sub-plots relating to the home life of the cops then it could be better. They often spent a lot of time on rather weak family stories while the main plots tended to get resolved improbably quickly.