Love my windows! The sales man was very knowledgeable and courteous and gave us great service. We had a small issue with one of the windows not closing right and PS sent out a tech to fix it quickly. It now works just fine. Installers were quick, but I had to keep an eye on the installation process to make sure it went to my satisfaction, but that is just me. Otherwise they were sufficient. I am going to PS for my other windows!