I put this up in my daughters room. We have a cat who just LOVED taking advantage of the blinds that used to be in her window. every slat was just about broken because he would always try to look out the window. With this put up he just moved it to the side. nothing broke anymore. lol It's a refreshing change. The extra to it is the room darkening aspect. The sun always stays on the side of the house her room in on most of the day making it always bright in there. This shade really helps. No its not completely dark with this up. But it's certainly enough to where there no more issues with the bright hot sun. I would recommend this product.