Product review (5 stars): love it, had it for several years now and ...
love it, had it for several years now and it has never lost suction.  I will buy another one when this one stops working.  I've tried several bottom loaded ones and all lose suction, but not this one.  Water is cold and the hot water is very hot,doesn't need heating up.  You can also turn the hot off if you don't want it on.  Great Product!