Question about Philips Sonicare Sonicare DiamondClean

Yes, I bought the toothbrush together with a set of soft brush heads (Philips HX6054/07 Sensitive).
The Philips homepage offers a good overview: http://www.philips.ch/c-m-pe...

No, there is only one standard hardness.
What is bad, however, is that the part no longer vibrates properly after about three months and loses this property completely over time. It then still makes a noise, but only has the function of a normal toothbrush. A bit poor for this price.