I was impressed with the friendly and courteous attitude of my technician. He performed my annual air conditioner cleaning; he explained every thing he did step by step. I asked him to replace my thermostat and he did. He recommended that I replace my air filter because he found it dirty when he inspected it, he explained the importance of a clean air filter and of course I agreed to change it. He performed my FREE dryer vent inspection and told me that I did not have anything to worry about because it was clear.