It's definitely not for everyone. That said, if you can get past the gruesomeness element, it's actually an amazingly done show. Also, the gore and gruesomeness isn't purely for shock value. It tends to serve a purpose within the narrative, and usually operates as a manifestation of the killer's psyche and a form by which the killer "communicates" with the rest of the world. It's not just "Oh, he did a blood eagle because that's gory!"