Feels like a whole different house. No longer do I wake up feeling like I'm camping (i.e. with chilly air feeling like I'm outside). The air sealing I think made the most difference - much more than I had expected. The insulation in the bathroom also keeps it warm and cozy.....Kevel is one of the best contractors I have worked with. Thorough, responsive, fair, and very knowledgeable. They delivered even more benefits than they had promised. Overall I couldn't be happier with their performance and would heartily recommend them to my friends.