I have purchased this unit 3 weeks ago and was scared and sceptic of how it will work out but so far I'm very impressed with it. We had some very hot days where we used ac cooled my entire floor 1400 sqft no problem we also had some cold days where we used it as heater very impressed heating seems to work great. There is not much on the internet about these units no one seems to write any reviews but maybe that is a god thing because most people seem to write only when they have problems. It comes with everything you need for basic installation I did all of the carpentry stuff myself like drill the hole in the house put the brackets etc. But I have had HVAC person pressure test it with nitrogen for leaks and pull the vacuum out of lines afterwards and test the system I didn't want to void the warranty. Must say that HVAC guy was impressed with quality and more so how much I have paid for it. So fingers crossed it continues to work like this.