I bought these Catalina Ceri curtains in anticipation of using them in a new home I will be moving into later this spring, and so I can't provide a full use report yet, but I can say the color for the room I anticipate using them in attracted me to selecting this item, and since they're a gauzy-fabrick,that  should help diffuse direct sunlight coming into the room, but still allow enough natural sunlight to come in, but help reduce the heat that enters from the window. 
These curtains are machine washable which is another nice feature, and hopefully will stand up over time. I look forward to putting them  up once we move into our new home.