We bought this unit to cool down a 175 square foot bonus room over our garage. It's been two months now and has worked great. I wasn't sure how it would do compared to a window unit, but it cools the room down without the hassle of installing and removing a heavy window air conditioner. I like the fact that if we need to, we can move it somewhere else, like the garage if needed. Now with Summer almost here we will have the A/C on downstairs and that can only help the upstairs. We went with the LG unit due to very good experience with other LG appliances.