I have had 2 units installed for over a year. They were simple to install, only took 2 days on first one . And second had done in a day ,after I knew what I was doing. A/c works great , heat? Well they don’t heat as good as they cool, but I’m sure heat pump didn’t pull a lot of heat when it is 30 degrees. WAY cheaper to run then central A/C. And cools house down almost as fast. Love the WiFi option , I program it to come on before I get home from work and is nice to come home to a cool house, knowing it wasn’t on all day.