Instruct: Classify the given review into positive or negative sentiment.
Query: Poor Design

When I purchased my Bunn Coffee maker,I was told to buy bunn filters because they were taller,and the grounds would not get in the coffee.I purchased a Perma-Brew Resuable filter at a very good price.The problem with the filter!!!!!! it"s to short.It's shorter than the cheap ones. Ralph B