We bought this unit for our 235 sq. ft bedroom. Purposely got this one because it is supposed to handle much bigger room. It works great! It cools the room fairly quick and keeps it as cool as we want all night. It is fairly quiet.... the noise it makes doesn't disturb our sleep.
 We have 70 inch high horizontal sliding windows. The window adapter that comes with the unit is not long enough. I could not find any window adapters long enough online, so I made my own.