Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Review On Oral B

I have been using this product for over 10 years and it finally wore out. Oh, it still operates beautifully, but the toothbrush won't stay on anymore. But, I liked it so much that I bought another just like it and expect to get 10 or more years use from it. I would strongly recommend this product. Did I mention? It does a heck of a job cleaning your teeth too.