Product review (5 stars): Needs a drain for long-term cooling uses. OOPS - IT DOES HAVE A DRAIN! - 5 stars!! Sorry...
perfect for an rv - especially inside since the temperature inside the cooler depends on the temperature outside. My only reason for 4 stars is that it is foreseeable that there will be condensation. However, there is no drain.  In other words, perfect for a short trip to the beach -- put your cold drinks in when you leave, plug into the car's 12v outlet (formerly known as a cigarette lighter), and they will stay about 40 degrees cooler than the outside temp.  But when operated every day, the condensation builds up and needs to be drained.  I intend to drill a hole, install a bushing and plastic tube.
PS:  For true beer lovers, we know that "ice cold" is not what the brewmaster had in mind; this cooler will not freeze water but it will keep beer in the range recommended by this website:  [...]
BTW: I have not tried it on warm stuff.