Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This pump was awful

When I needed this pump the most, in the middle of the night with sore nipples, it did not produce. I ended up giving my 5 day old formula. I tried the next day and the next few days to use this pump. It is completely useless, it did not express any milk. I ended up buying a medela, much better. Now I know..you get what you pay for. Just go for the medela, forget about this pump.