We contacted WindowRama about replacing our windows and within a week the representative was here to show us what they have to offer. We were impressed with the quality of the 2400 Series windows and the many options that were available. We were given a quote and since we had budgeted that amount (not expecting to replace the patio door) we decided to place the order. It was like getting the new patio door for free. The installers arrived to take measurements a day or so later. We were told it would be 4-6 weeks from the time we placed the order until the actual installation. Each week we received an email with the status of our windows. Near the installation date, we received instructions on how to prepare the area around the windows to help the installers. The installers arrived and had the 8 windows and door replaced in a little over 7 hours. They cleaned up after the installation and showed us the features of the new windows. Piece of cake! We probably won't be able to notice energy savings until next winter since we don't use air conditioning much, but we were surprised at the difference we noticed immediately in how the windows have made the house so much quieter. The annoying sound of dogs barking is practically gone! We're thrilled with the ease of operation of the windows and that I'll be able to clean both sides without having to go outdoors. Lots of nice features. I definitely recommend WindowRama. High marks for professionalism, communication/responsiveness, and quality of product.