I had a technician from Complete Comfort Heating and Cooling come out to my home, for their semi-annual service check of my unit. They did a good job. They checked everything, and took their time to make sure they didn't miss anything. The technician was also friendly and on time. I've been using their services for the past five years, since they installed my air conditioning unit, because they are easy to work with, and I've been happy with them ever since they put in my system. I will continue using their services in the future.