I have used Comfort Zone Air Conditioning on a couple of occasions. They did good work. They were attentive and very prompt. The staff members are very nice and friendly. They fixed the air conditioning for me. The air conditioning is working well now. Their customer service was very good. They were very responsive when I called. There was no long wait. They were punctual, but on one occasion they didn't arrive on time. Their communication was very good and they explained everything clearly to me. This was my first time using them but I would call them again if I needed to.