This unit is doing very good so far. Bought it for the bedroom. I like to sleep in a cool room even in winter. I have a couple issues though. How do I tell if I have the ionizer turned on? Also, the window insert should be made so that you can connect the exhaust hose to either side of the window. Also, the instructions should show a picture of how the exhaust outlet is attached to the window insert and the instructions should tell you to attach the exhaust outlet before installing the window insert!