Instruct: Classify Amazon reviews into positive or negative sentiment
Query: diappointed

We recently bought this baby food mill to use to grind food for our grandchild, but am very disappointed in how it functions. It does not push up easily in the tube portion and I found it difficult to put grinding head in the top. When our son was an infant 20+ years ago we had a grinder that looked like this one, but functioned without difficulty. AB