I bought this LG 12000 btu air conditioner because I have always trusted LG products. That's all I buy. I never have any problems with their smartphones and I figured to give their air conditioners a try and I am glad that I did. It keeps my living room and kitchen and part of the hallway cool and that's 340 square feet. I have it set at 78 degrees but it keeps my living space around 80 degrees. I also use a hybrid tower fan that blows 30 percent more air than traditional tower fans. Which makes it even cooler when oscillating. That's better than 90+ degrees with windows open. I love the fact that I can set a timer to turn on or off the a.c at a desired time and not have to worry about it. I also love the clean filter reminder. It isn't noisey like I thought it would be. It's actually quiet. I'll never go to a different brand. I highly recommend this product.