I am very satisfied with the skills of Mr. Dean. He explained to me of all work performed and let me watch him do his work. Very friendly and personable. 2 things. 1). I need a resupply of the 20 x 20 inside filters shipped to my home, and 2). I have previously requested a reminder ( a week ) prior to actual service date, didnt get one this trip. Otherwise, all is good. Thanks for the great service, Roger & Patti Swann