I have always heard if it is too good to be true, then it must not be good. I am so glad I didn't listen to that this time! I almost did not have them do work for me, because everything sounded too good to be true! They sold me a brand new Carrier system for so much less than any other quote other companies gave me. They installed it when I wanted them to, and everyone was so polite and professional! I really recommend Green Leaf Air, I could not be happier with my experience.