I have nothing to say but good things about them. I had 30+ year old unit when I bought my place. Other a/c repair men tried to sell me expensive services/repairs I didn't need. They have taken good care of my dad and neighbor. When it came time to replace my unit, they didn't try to up sell me on things I didn't need, unlike the other quotes I had gotten. I know that AA will be their when I need them, and recommend them to my friends and co-workers.