Angelo is very knowledgeable and makes sure to listen and give options that would work for your current situation and budget. Pella has high end products as well as entry and middle products for any budget. The warranty and installation was top notch. I personally used him for 10 windows and entry door with two sidelights. They have their own installers and don't use outside contractors. Pella warranties are usually transferrable which could be a selling point on your transaction.