I liked season 1 very much. The story behind the town itself, what it was used for, how the town ended, the stories of the people who lived there, all of it was a really nice (and a little sad) story. The people that were interviewed were believable and their stories were almost haunting. The season wrapped up nicely. Some questions were left unanswered but it lets you think about it and wonder, which I like.
Season 2 was not really necessary. It brought in an unlikable protagonist, an equally unlikable antagonist and most of the people in this season weren't very nice. It was a bit of a chore to get through and the end was so weak that it made me wonder why I worked my way through it.
I should have stopped at the end of season 1.