It'll help keep the temperature down for longer when you are away postponing the trip to the supermarket to find the empty hole in the freezer where the ice was (fierce)
I paid £57 10 years ago and still going strong defiantly a great bit of kit.
Great tip! I bought one of these a few months ago for £43 - think it was an Amazon price error. Currently in action at a festival. Great kit!
Always prime this before you go away stick some freezer blocks in the night before to bring the temperature of the box down, you lose a lot of ice just bringing its temp down, then switch out before you leave with some fresh blocks they will last longer. Freeze everything you can in advance, milk, bacon, anything that can be frozen freeze it. Fill any gaps with ice cubes. (strong)