Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not happy

Not worth the cost. We wanted to save time on the after-the-meal cleanup, but it has not changed. Our 18 month old is more concerned with taking the thing off the table or trying to fold it back up and play with it, than he is with eating his food. It is just more of a mealtime distraction for us!Besides, the suction cup only sticks to one of the textures of our tile topped table!