I have used the shaver (no beard trimming!) The duration of the charge is, like all other razors of this brand, impeccable. Once loaded you to easily have + 15 days and which is already very good. Its pivoting head tracks the curves of your face for a good shave although I tend to want too much pressure against the face because of his head. The grip is very good but ... yes ... there is a but ... I find that my previous razor Philips PT860 / 20 is more manageable and closer shave for a lower cost, can be is it a matter of habit. (Test duration 15 days) Where I do not understand enough is this refill product in history to wash the razor blades ... for me it's a gadget, just to buy the products in the customer +, otherwise any other interest?. The + anyway for this model is the power, speed as the three were not on my previous razor. In short, a good razor, but a bit expensive and we could very well do without these gadgets.