Every time Comfort First Heating & Cooling comes out I usually be with them, and we have good decent talks about the new equipment. They'll give me a breakdown of what's going on. And when I ask questions, they explain everything to me. I don't have any problem with them because they always show good common courtesy by taking time to explain things to me. And they show up on time when they come twice yearly for the maintenance and call in advance to let me know. The person that does the calling is very courteous too, and I appreciate that--and also when they give me updates on changes with the units.