These panels do exactly what they are supposed to do.  They keep the room dark, they keep noise down and they keep the room warmer/cooler.  However as many people have stated they arrive incredibly wrinkled and stay that way.  I did the dryer wet towel thing which helps.  I used my professional garment steamer which helped.  They still have wrinkles that will not come out.  They have been hanging for about a week and still have some wrinkling.  It might not be a big issue on a darker panel.  I have the beige color ones and the wrinkles show up.