Basically a three-step process, the first step being a walk-through and estimate. Next came a more comprehensive on-site inspection, working out the installation details necessary. The third step was the actual installation, taking two days and performed professionally by two installers as well as an electrician to do the hook-up for the air conditioner. Everything was accomplished pretty much as expected, and nearly a month later everything is working well and performing to my satisfaction. All the clean-up and haul away was done well, and the installer was informative and helpful about performance, upkeep, and annual inspection details. One small caveat, as yet still unresolved, was a promise from the provider to give me a free air conditioner cover since my unit was installed under a tree that drops a lot of 'stuff' throughout the year. So far, still no cover. I'll update the review when and if it arrives. *UPDATE* One day after my Angie's List review posted, the manager of Sunset called me personally to inquire about the air conditioner cover issue. He was very concerned about getting the issue resolved, and sure enough, one day after our conversation the air conditioner cover was delivered to me. There can always be a communications glitch when you've got three moving parts within a company working to get an installation done, trying to cover all the details involved. The real test is how does the company react when such a glitch arises. In my opinion, Sunset passed that test solidly and reinforced the impression I had of them throughout the entire installation process: they are committed to professional customer service and making sure the customer is totally satisfied. This customer certainly is.