My heat pump was installed just three short months ago, but I'm already in love. This heat pump has saved me over $50 per month in heating costs. I control the heat pump through a WiFi enabled thermostat, and it works flawlessly. What is so strange to me is that the air feels cool coming from the vents, but the home stays warm. I only have one small complaint about my heat pump, and that is the time it takes to raise the temperature in the house. If I leave, I set my unit on "away", meaning my heat pump will not turn on until the temperature in the house is 68 degrees. When I return home, I turn my thermostat to the "home" function. When I am home, I like the temperature to be around 72 degrees. For my heat pump to heat the home those 4 degrees, it takes around an hour or more. If I set it to electric heat, my home is heated much quicker. This is just a small complaint, but I can live with the time it takes to heat the home with the heat pump if it saves me money monthly. I have suggested the heat pump to all of my friends and family that are looking to upgrade from the standard heat strip units. Two of them have already upgraded, and they are absolutely in love. If given the option, I would definitely purchase this brand again as I haven't had a single issue with it thus far.