I bought this in June, just when it was getting hot. It quit working 2 weeks later, and though it took some time to get a repair man here, he did a good job and got it working again right away. I rated the air conditioner 5 stars, as we love it. This unit is very quiet, and energy efficient. Our problem was easily fixed, once they had someone available to work on it. Part of the electronic controls stopped working; the repairman just replaced the controls and we were in business again.