Initially, Chris Lockhart of Goodman HP came out to do an energy audit/assessment of my home, which as one can imagine is not the best insulated. His assessment coincided with what I expected: He measured the dimensions of each space, took into account the number and type of windows, etc, then plugged it into a software program that made recommendations. (If I recall correctly, this assessment was done on a second visit as the first appt. was a meet and greet.) Then after sitting down to discuss our needs and wishes, we came up with a workable solution, albeit a pricey one - which was a downside. As previously mentioned, we decided to have Goodman install heat pumps in each of the bedrooms and the two large common areas as well as place two air purification units. Once the parts arrived, over the course of two weeks or so, Art and Brad (I believe that was their names) came out daily to do the installation. After a while, I felt comfortable leaving my home to run errands while they worked. Art and Brad were always professional and quiet and considerate whenever there was issue or decision that deserved my input, such as "do you want us to run the wires through this wall or over here?" As an aside, the sub-contracted electrician, Demp or Dent (spelling?) and his workers were also very courteous and had a few helpful suggestions for outside electrical outlets. In conclusion, the experience overall went well. I say that despite the fact that two of the heat pump units failed after two months in use. It took about a year to get them fully fixed. However, given that they never once give me a hassle and promptly came out on numerous occasions, I am more than satisfied with their post-sale service...and it's the service after the sale that distinguishes a company in my mind. Eventually, they fully replaced both units and not once was I charged (of course, it was under warranty). Do I wish that their prices were lower? Yes. Would I retrofit my home the same way if I could do it all over again? Maybe. I might consider regular ducting of A/C and heat in from the attic and the basement and attaching the air purification units directly to them. Cost and personal finances would be the main factor in such a decision. Would I call them first for other HVAC or water heater installation projects? Yes. Why? Service after the sale is second to none.