I just finished both seasons of Arctic Circle ("Ivalo"). I liked it. Yes, there were some strange twists of plot that strained credulity and were quite farfetched. That said, the drama was marked by good acting, sympathetic characters, an engaging storyline, and gorgeous Nordic vistas. I was going to give it a seven, but the surprises that unfolded late in the second season caused me to add a point and bump it up to eight.
Arctic Circle met my criterion for a good drama: I cared about all the major characters. Lina Kuustonen was a strong lead as policewoman Nina; both her sister Marita and her ex (and baby daddy) Esko became sympathetic characters as the story unfolded. And I can't say enough about actress Venla Ronkainen, an actress with Down Syndrome, who played Nina's special needs daughter, also named Venla. Often I find that kids in dramas don't add much to the storyline. But Arctic Circle was the exception. Venla was possibly the most endearing character I've ever seen in a drama. She played an important role in the flow of the action, and lit up every scene she was in. The actress was great. I don't know if she'll ever act in another production, but she did herself proud with her performance in 16 episodes of Arctic Circle.
As I write this, I have no idea whether there will be a third season, but I would watch it.