Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Incredible

On a doctor's advice I started chewing Arm & Hammer Baking Soda Gum for my acid reflex.Guess what it really works!!!!. I bought several packages when it started disappearing from the shelves and have been hoping it comes back. I am now running out of my stash and truly hope Arm & Hammer rethinks its decision and starts production again. If you have the opportunity to buy it you should... Improved dental health was a plus. Acid Reflex relief is the best!!!