Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Corrosion after first wash in the dishwasher

I have been very unsatisfied with this flatware, particularly the knives. After the first washing in the dishwasher, almost every knife had what appeared to be rust spots. Some of these "spots" came off but additional rust colored spots appeared when the knives were washed again. This set is not worth the money.