I have two long windows in my new craft room.  They fit perfectly.  I used one panel on each of them and it looks perfect. The white brightens up the room, especially against the wedgewood blue color walls.  They are a bit on the thin side, but very country frilly.  Love them.

Pros: Frilly ruffles.  Easily washable.
Cons: A little thin.  Will not block out the light.