They are fine. We use them often. Over a period of three years we have used them on numerous occasions. Whenever we had an issue with our air conditioning unit, they were the ones we called. The house we were in was over 22,000 square feet and we had about eight commercial air conditioning units so they were constantly being needed. We had about 15-16 zones throughout the house so whenever there was an issue they were the ones who came to the house to do the repairs. When they came they submitted a bill. They did the work and came out to see what the issue was and what needed to be done to fix it. Over a three year period I would say we have paid them in excess of over $30,000 - $40,000. The technician who would come was named Taylor and he gets A's all the way through. The reason why we always had that particular person was we wanted to control who had access into coming into who was coming into our home. Whenever there was an issue the same person would always come out.