Highly Recommended
This isn't for everyone, obviously. But if you like a vaguely Gothic period drama with a strong female heroine, you should enjoy it. Very good acting, haunting music, and wonderful cinematography. Jessica Brown Findlay is very convincing and beautiful as always. Her character is prickly and difficult, which I like. I've never seen her play that type before.
She also nails the physical side of the role.. It is a surprisingly physical role for a period drama, for a female character anyway. She is a natural in that department.
And her chemistry with Matthew McNulty is promising. He is terrific.