This unit has zero problems cooling my entire 850 sq ft downstairs. I did the installation by myself, which probably isn’t recommended as you have to take out the AC unit from the cage, install the cage into the window, and then lift the heavy AC unit into the installed cage. Would definitely recommend 2 people to lift the device to be safe but I was alone and just needed to get the unit in ASAP. It takes a little bit of time to install but is definitely worth it after you get it in. It’s also nice that you can control the unit from anywhere with the app, which tells you the temp in your house and gives you full control over the unit from wherever you may be. You also do not need any adaptors or any changes to electrical work in your home and can be plugged into the standard house electrical outlets. Would highly recommend!