My tech, Iby, was extremely knowledgeable, fast, and most importantly, there is zero upselling or sales tactics. He diagnosed the situation, assesed what it would be, gave me a couple options including doing nothing and I chose the one to temporarily extend my ancient system until I decide on the proper replacement. He was also at my residence within 4 hours of the call! I also felt comfortable with tech being around my home / building. He even let me look at my unit and teach me a little about what was going on. Excellent service and easy to deal with!