Great on the phone, honest and accurate with their time estimates. Free to have them come check you out even when its the busiest time of the year. AND here is the kicker. The guy who came out did about 5 minutes of work and didn't charge us a dime. He said our unit was OK and we just had a kinked hose, which he bent back into shape. He helped us find the right kind of air filter online so we knew what to get, and went on his way, refusing a tip. Everyone I dealt with at this company was not only courteous, professional, and good at their job, but actually a pleasure to talk to. I instantly trust anyone who has the capacity to "fix" things that aren't broken and turns it down. This company is legit, and they've earned a customer for life from me. Don't hesitate to give them a call.