We have a 50-year-old 15-pane bow window that actually got frost INSIDE during the colder days of winter. We wanted to keep the window and Indows seemed like the perfect solution. Everything about the process went well - the salesman was helpful, the measuring kit easy to use and my wife & I handled the installation ourselves with no problem. Since we live in a rural area noise reduction wasn't a concern for us but preserving the view was; the white silicone framing is much less intrusive than we expected. We haven't had them through the winter yet, so time will tell, but we're very happy with our purchase!