Bought in December 2011, after 9 months (Sept. 2012), the handpiece was broken for the first time. Exchange problems, this second handpiece was then broken in June 2013, ie after 9 months. Exchange without any problems. Now in March 2014- 9 months are finally converted the handpiece is defective again. Since the warranty period is over, I asked for fairness and it worked. In 9 months, when they will then be broken again, I will definitely not buy me this expensive toothbrush again. The brush cleans very well, but a shelf life of 9 months is definitely not acceptable, even for ecological aspects. Never again a Philips brush
