I enjoyed watching season 4. Again with a twist. Good exciting build-up. Family drama. Exciting until the end. Still, for me this season doesn't rank in 2nd. If I list them in terms of originality, I will go ahead for season 2, then 1, then 4 and 3... that's part of it, but also not...
For me it was a wonderful series to watch. It's not what it seems, I find this series striking and I like that. Have seen and enjoyed all seasons. Great storylines with a fair amount of suspense. Too bad it's now ending after season 4.