A new apartment and I had a problem. An old building and the windows outside hadn't been washed in 50 years and probably weren't going to be washed soon. Huge windows, lots of light, BUT the windows were only shiny on the inside. I ordered the Ecohome Semi-Sheer Cellular shades and now my living room and kitchen are flooded with lovely soft light. It comes through but we don't have to look at unsighly windows anymore. Easy to install.