I bought a Philips Diamondclean toothbrush and it stopped working first after two months (customer care provided me with a replacement) and then the replacement stopped working after 2 years (customer care turned out to be very unhelpful and didn't offer anything). Considering the toothbrush cost £120, it is a joke. I don't mind paying more for high quality products but if theirs repeatedly break and fail I may as well buy a cheaper toothbrush from a different company and replace it every few months.