It’s been hot in NW Indiana this spring. My LG has done quite well to keep my 100 year old ~1100 sqft home cool. I have 20 of the the old single pane windows in my very energetically inefficient home. My electric bill only increased by about $20 in the first month. Worth it to me to stay comfy. I have also kept 3 ceiling fans running constantly in the same amount of time. I use the energy saver feature about 50% of the time when the unit is running. Installation wasn’t exactly a breeze. I had to ask a friend for help due to weight of unit, getting it situated, and getting the old window set around the unit. I am happy with this purchase!