I really like the show - it's compelling, mysterious, without being too creepy or gory. I like the characters and the difficult and emotional interpersonal relationships that such an occurrence would cause. It's a mixture of science fiction, paganism, and the supernatural combined.
I don't like the paganism and that the scriptural references used are taken out of context and totally misapplied, and that, like all movies and shows, they portray the people focusing on them as hateful or wacko, or both.
That being said, it is an interesting show.