Bests & Worsts Reviews from Amazon

We have a large home with older single pane windows. Even with a brand new AC system, the house gets warm. We have double sliders in our family room and it gets pretty hot during the day. We tried this on the sliders first. Because they were a large surface, it took my husband and I both to apply it. It took approximately one hour to do all 4 sliding doors. It has a nice mirror finish during the day and the room was noticeably cooler. It also removed the glare on the TV. In my picture, you can see one side of the door with the tint and the other with nothing. Big difference! It darkens the room similar to putting on a pair of sunglasses. We just ordered several more rolls to add now that we are confident that it will make a difference.