I have Solar Tint's 3M product on both my vehicles, my home and my office and I cannot express how impressed I am with it. This past summer (a very hot one) I hardly used the A/C at home and I've noticed that the temperature stays more even in the winter. I no longer use my electric heaters, which used to always be on in the Family Room and Master Bedroom. I used to always have to close the blinds in order to see the big screen TV in the back of the house, but since I've had the film applied, they haven't been lowered once. My initial reason for considering window film was to prevent fading of my furniture and wood floors, as I have a lot of dark colors. But, once I realized the other great benefits the film would also provide, going ahead with the installation was a "no brainer". The sales staff was very knowledgable and helpful thoughout the process. Every vehicle or home I own in the future will have 3M window film installed!