Before any important purchase I make ,I always educate myself the best I can.(some say its a curse) . I did a lot of research about windows and the available features before ever meeting with Steve in the showroom. In his conversation with me he went over all the important things a excellent window should have and how it works.He was extremely knowledgeable about his products. Okay, so now I picked a great window what about the installation part. Well Eric has been working with Guida for years and I was again very, very impressed with the workmanship and care about the job they displayed. Plus when they were done the place was completely clean! THANKS GUIDA TONY D