I gave that show a shot earlier this year after hearing people say its one of the goat shows, but i thought it was just boring. After 6 episodes i just gave it up. I didnt like any of the characters.
Great acting
Great detailed writing
Great representation of an era that makes it seem like you lived there.
Plus it's just cool
I'm assuming people don't like it because it's not their cup of tea or they have ADD and can't pay attention unless blood is on their screen every 5 minutes.