Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very Hard to Clean

Mine has always worked well but I've quit using it because it's so difficult to clean. I got mine free after purchasing something else and I loved the way it chopped food but never felt like it was clean enough and wondered about food safety. It's sitting in a cupboard and I'm trying to find something to replace it but none of the mini choppers seem to get very good ratings.