I was skeptical about purchasing these but after a chat with customer service, I got them.  They really are beautiful and compliment my design.  They are sheer and lots of light comes through.  There are two sheer fabrics together. I like that even though a lot of light comes through they are not completely see through. At night you can see somewhat but more of shadows than clearly.  (It may depend upon your lighting how much is seen clearly) I have a wall of windows and these curtains make them look lovely.

Pros: Amazing Price, Beautiful and elegant but simple
Cons: none