Product review (4 stars): This will work for us
Bought this item for use on a camping trip to Alaska. We have only tried it at home but it appears to do the trick. We put in an already cold beverage and also a room temperature beverage. The already cold beverage stayed cold and although the room temp beverage took awhile to cool, it wasn't an unreasonably long time. I agree with others who wished the vehicle plug in had a longer cord. You really have to put it right up near the front if you hope to reach the plug?  We are happy with this product and would recommend it to others.