All I know is that in cabin 5150 two weeks ago on the Magic's 2/7/04 sailing we put in warm soda and wine and within 24 hours they were cool!!!
Maybe she did not mean coolers in the since that you have to put ice in them.....but rather they keep things cool, not cold.
I could be wrong, but I am just going by what I personally experiened 2 weeks ago on the Magic!!!
MJ