Had two, both broken.
I was given one of these for Christmas in 2008. It worked very effectively with my laptop and did the job. After 3 months however, where the USB cable plugs into the cooling platform broke by disapearing inside the cooler.
As this item has a 1 year guarantee, I replaced it with an idential one, which again after 3 months, broke.
I was always careful with the cooler, packed away carefully whenever I took it out and never was forceful with the cables.
I do not recommend this product purely on the fact that I have had two that have broken.