I live on a NC lake with a lot of heat and sun. My home has a wall of glass on the water side along with 5 large skylights. After speaking with Susan Burke and Carolina Solar, my problems were quickly solved. Susan came to our home and personally gave us a quote, along with recommendations that were right on. I purchased a darker tint for the skylights, a medium tint for the rest of the windows throughout the whole house, with the exception of privacy tinting we needed for our master bath. The 3M product works very well, the price was very good, and the installation was quick, and very professional. I can't say enough good things about Susan and her team. I will say this though -- I thought enough of my experience that, based on our recommendations, our friends in Raleigh had they whole house done, our neighbors at the lake had their whole house done, and my sister had her house done in Garner, NC. I don't think you can go wrong with the 3M tinting product or the professionalism of Carolina Solar!