So far I am very happy with this purchase. I set the temp on 57 deg. The temp stays constant between 56 deg and 58 deg. I keep the unit in the garage where the temp changes from the low 50's to the mid 80's here in Colorado. In two weeks I will be buying another Cooler. Unless something bad happens between now and then I will be buying another one of these units. If I have one complaint, it would be the same as with all other Wine Coolers; the shelf height is a little tight for some style of bottles, therefore 4 stars.