Instruct: Classify the given review into positive or negative sentiment.
Query: Manual Breast Pump

This is a piece of junk! I bought this when I left the hosiptal with our daughter and ended up getting rid of it and buying and electric one. I try useing this pump twice and did not even end up with an oz of milk. You can find electric ones that are not that much, and they work fine. This pump is cheap, but I guess you get what you pay for.