Use Philips for many years; The 4-year-old model with Speed-XL shaving heads should be replaced, because shaving head and battery schwächelten. I have long thought this expensive types to buy with vermeindlich even better shaving system. This model also attracted even with a LiIon battery. The problem areas are discussed here plenty: upper lip, nose ... I can not notice any improvement of Rasuerergebnisses. It's Werder faster more thoroughly. Like several other noted at this point: The much cheaper Speed-XL shaving head models achieve the same result. The battery lasts long, however sensational, with me at the 2-3 weeks; Shave only 5 working days :-) The shaver does its service, no question, but in my opinion, by the poor price / performance ratio for the cheaper Speed-XL shaving head models "only" 3 stars. The long battery life is not so important for me. In practical terms, the desktop charger, which is mitgeleifert because the device is not so rum during charging.