I bought this in-wall air conditioner last December and installed it in the living room of my vacation rental near Yosemite National Park.  While we do have a central AC system it is too underpowered to handle the needs of this, the largest room in the house.  Before spring, I returned to my home some 6,000 miles away in Macau.  But I've had absolutely ZERO complaints so it must be working fine!  Okay, so there you have it....I've written my honest review in exchange for an extremely small chance to win some 
real money!