Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Absolutely the best

My dad had one of these and I still remember the day I tried it. When I needed to use the dandruff shampoo, this rubber brush worked so well. Now, many years later, I wondered if anyone still made it. I could not have been more surprised to see it pop up on Amazon. And the price is so cheap! You gotta try this.