We needed a back-up AC because our whole house AC stopped working. We are replacing it. This one works fantastic! It cools most of the house. The air is very cold. I like this one, because it checks the temperature and kicks on and off when needed. It is perfect for our needs. If we didn't have it, we'd suffocate, as it has been in the 80's and 90's here in AZ. Works perfectly. Would highly recommend it to anyone.