I used Bob's for my AC check up and have just used Bob's for my heating check up. I had used another company which I inherited from my sellers of my current home. They were ok, but I saw reviews on Nextdoor about Bob's and decided to give them a try. I'm retired and a lot of the positive reviews were from other retired people. I have found that with both visits, they did a thorough review of my HVAC systems. With my AC tune up, they said my capacitator probably need to be replaced and I was not surprised. I have 2 units and had to replace the other capacitator the year before. They never come up with surprises and a sense of "urgency" unless it is. I just found both technicians easy to work with, ask questions and I'm happy to use them for my tune ups. I'm happy with Bob's.