We have over 3 years already the 3rd unit in use. The 1st has held from 2008 to 2010, then probably something went on the engine broken - it was vibrating, but the brush cleaned not really. We were impressed by the cleaning performance (and even are), we then bought a set with 2 handpieces. Of a handpiece the stream went down after 1 year, switched from alone (great middle of the night :-)). The service of Philips in exchange was impeccably straightforward. Unfortunately, the transmitted as a substitute handpiece after 3 months again Sense (switches from alone - no longer loads on) we managed to find a replacement part immediately. Has come today. Let's see how long does that. If it reflects problems within short and the warranty has expired, we will (despite the good Philips - service and good cleaning results) buy no more Sonicare. Too bad, because of Philips I expect better quality than such a "disposable".
Jun 2012 - again faulty. Durability of a new product not even reached the 2 year warranty period. Unfortunately really no more Sonicare!
