Instruct: Classify Amazon reviews into positive or negative sentiment
Query: greatest thing since scooped ice cream

have used this for 20 years and it's still going strong. the freon that is sealed into the one piece die cast aluminum is warmed by your hand which warms the freon inside (you can hear it when you shake the scoop) and the freon gently warms the cup of the scoop allowing for easy release of the ice cream.BUT it cannot be put in the dishwasher. the super hot water temp will cause the seal to leak allowing the freon out.most likely, the current scoops are using the replacement for freon (which i can't remember the name).easiest scoop to use, easy to clean, built like a tank. it will be the last scoop you buy.