Product review (2 stars): Does NOT cool to 40 degrees
The size is good and the cooler is quiet, but it doesn't keep the drinks cold.  We use this just for cold drinks at horse shows because the fridge in our living qtrs can't hold three or four days of food and drinks, too.  Even rotating four blue ice packs to help keep the cooler cold, the drinks are cool, but never cold.  I had a Igloo electric cooler for years and although it was definitely noisy than the Knox, it kept everything nice and cold.