Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of money!

We've still got it hanging in the doorway, but it is a real pain to use. You have to manually close the screen, making sure that the magnets connect, each time you walk through the doorway. It only has 2 set of magnets, not a whole row like the one on TV. I'll leave it hanging until I get something else to replace it. Waster of money!