I recently purchased 2 Windmill air conditioner units. They were very easy to install without taking up a lot of space. The look is very sleek. The units cool our entire home and are so quiet I don't even notice they are running. Unfortunately one unit was damaged in shipping. I contacted Windmill by emai and they responded immediately with a solution. Within days I received a new unit. I would highly recommend Windmill air conditioners, not only for their quality and efficiency, but also their outstanding customer service.