Saying that the HVAC installation did not go smoothly is a bit of an understatement.
First, I would like to say that out of 5 contractors, C\&C Temp Control gave me the best (least expensive) quote to replace my heat pump and air handler. Second, they were quick to send out service techs to fix a problem with the installation. However, it took 3 service calls to fix that problem. On top of that, during one of those service calls, they damaged my kitchen ceiling and the framing that holds it up. If all repair costs are paid for, I would bump them up to 3, maybe 4 stars.