I just purchased a system from Total Comfort and James, our rep, was very knowledgeable and really spent a lot of time with my husband and me. We had 3 other companies come out and this one by far had the best customer service and they were able to show us how we were going to save on our utilities, have cleaner air, and now we can even control our system from an app on our cell phone! All around great service. I am impressed with this company and very happy with their services!