Instruct: Classify a given review into positive or negative sentiment.
Query: Breaks down

We have had 2 Sonicare toothbrushes and the on/off switch stopped working on both handles over the course of 2-3 years. The company would not replace the 2nd one saying it was outside their warranty limit. We were told when the first one stopped working that it was a problem they were having, so we thought it would be covered as a faulty design or part, but no, Sonicare won't do anything. We bought a Braun at the same time and it is still working beautifully. We will no longer buy any Philips products as we don't feel that they stand behind their products. You'll notice that there is another one-star review here that had the same on/off problem. It's a good product as long as it works, and our experience is that it breaks down.