This unit came with the house we bought. Manufactured in Jan 2016 and we moved in May 2016, so basically brand new. It's November 2019 now and it's tripping the breaker every time it starts. So less than 4 years before it has a major issue which isn't acceptable in my mind. Aside from that, easy to use and set up so I didn't go with a 1 but still very much a subpar unit.