Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective product.

I purchased this product despite several reviews warning against doing so. Reviews said things like, "cartridges print fine for 3-4 sheets, and then the printer no longer recognizes it and fails to print" or, "print quality is OK, but is unacceptable if you're printing a resume or other important document." Unfortunately, I also encountered both of these scenarios, and now the print cartridges are boxed up and ready to get sent back to wherever they came. I'll be spending a little more money and purchasing a better product next time. Don't waste your money on these cartridges, and don't support a business who delivers such a sub-standard product.