I have had 3 models of the Braun IO range all of which have stopped working in less than a year so I thought time for a change. the fact that it's a USB connection rather than the 2 pin shaver socket is such an advntage when travelling abroad. The charge lasts all week cleaning 3 times a day, my teeth feel and look cleaner than they have for years. It's about time that a company challenged the ridiculously priced German and Dutch companies whom in my opinion are only capable of putting a terrific amount of unnecessary modes on their brushes. Although I've only had my Spotlight brush for a month it gives a superior clean and is more efficient than any of the Phillips or Braun ranges. big thanks to the two women who came up with this new brush.