Replaced two portable AC units with two Windmill Air AC units. 75% less noise, hardly impacted my electric usage. The unique design cools the rooms quickly and doesn’t blow on us. I still can’t believe that during a three day 90 degree hot spell these units kept our 1800 square foot first floor cool and humidity free! I can’t recommend this product highly enough! Cool design, works from your phone, quiet, affordable, super easy to set up (literally 7 minutes from open box to running in the window) and excellent customer support!