We have been using Econo Air since 2003. Recently, in April, they installed an air conditioner line dryer, a draft motor, and a flame sensor. They also replaced some rods. It is working properly. But generally, the control pad doesn't respond as quickly as we think it should. But once it responds, it does work correctly. And years ago the technician who was here suggested we buy a new filter. He said it was washable, it was steel, and it cost $300.00. That way we wouldn't have to replace it so often. So we ordered it and had it installed. Then later, on another occasion, the technician who was here said we had the wrong size filter. Therefore, it is not working properly. We still have it. He said we could wash it and try and sell it. But we said we are not in the market for selling anything. We expected better service. However, scheduling appointments with them is easy to do. They're easy to work with. And they are polite and courteous. We would recommend Econo Air to our family and friends.