Instruct: Classify Amazon reviews into positive or negative sentiment
Query: HATED THEM!

My baby could not get these to work! She sucked and sucked and could not get anything out! We even took off the bottom part, hoping the vaccuum was just to hard, but she still couldn't get them to work! Definitely NOT worth the (price) you pay for each one! Bought Evenflo Sensitive Response and she can work these just fine!