Bought for my office/sunroom which is about 12x12. It is working quite well. The room obviously gets a lot of Sun and even with thermal curtains is quite warm here in FL. Will make my work day much more tolerable during these hot summers. Works best if placed within 6-8 ft of me on low but I would think on a normal room would work quite well not having so close on high or low.  So far I am happy with this unit.