I can not remember when I bought my first razor Braun is so far in my memory. This means that I have had 5 or 6 in my life, some are still there, although we wonder why, because they no longer function properly. Regarding the latter model, I note that we must first load the minimum before using it. Unlike previous models, if power supply is plugged, it load but it will not start. I must say that my earlier had a multi-voltage built that allowed to start empty battery while it has its transformer in the socket wire feed (also multi-voltage). Perhaps this the difference in operation. Nevertheless, it is less convenient because battery empty = unable to shave on. Regarding the shaving performance, I feel like they are constantly expanding as and the launch of new models and this is why I am faithful to Braun for ages. Finally, I also noted that the cleaning brushes are becoming smaller, I am obliged to use the previous seems to me so much the last zero. You may retort that this is a washable model under the tap but except that it takes to dry the razor, I doubt that this function is 100% effective.