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

I bought this item in spite of the negative reviews. I already owned one myself and also got one for a friend. Each worked. This one I bought for an elderly woman who had difficulty seeing. It worked to open ONE can. Then it quit while opening the next can. It is still stuck to that can. Trying to reset it was unsuccessful. An e-mail to the selling company was ignored. I am very disappointed!