Instruct: Classify Amazon reviews into positive or negative sentiment
Query: They changed the formula!!!!

Warning folks, these USED to be great. If you're looking at reviews be sure to compare the date the review was written. MOST of the great reviews are from over a year ago. Most of the bad reviews are recent.They went and ruined a great product, probably in a money saving move. But the upshot is this product is not what it once was.