The main advantage of the series can be called that it is really interesting and unexpected. Despite to 'fairytale' story, after I watched the first season, I give eight.

Well, it's not gory enough to be well done, and I'm three seasons into it and they are still kind of rehashing a lot of what was in the movies... so it didn't evolve at all, it's just kind of a badly done extended movie with no real anchoring cast.

But, the plus side is that it gets really predictable, especially since they are too afraid to verge off and make it their own to not stick to the tropes. So, you see it coming a mile away.