I have owned this for almost 4 months now so it is time to give a review. The NewAir AC-14100H does a great job cooling our large bedroom, which is about 400 sq ft. It is quiter than a window unit but still makes some noise. Upkeep is easy. Add some water to it if you want it to cool more effeciently. A remote would be a nice addition. Also, one end of the hose needs to be a quick disconnect so it can be moved to different areas of the house easier. Making it screw into each end was not a good design. Other than that, this unit is great.