Instruct: Classify the given review into positive or negative sentiment.
Query: discolored quickly

Nice feel and design, but flatware rusted and discolored within weeks of use. Cambridge has the poorest website I have seen in years, and when I finally did reach customer service they were not helpful.Cambridge claims discoloration comes from lemon soap or dishwasher use.The problem is that we use neither of these, so clearly they make a poor product.