I ve been using this trimmer since a 4 months. In starting it was very good and sharp but as it got used much its blade started geting less sharp and batery life also reduced to approx 30 mins so I can use it only once and my beard grows very fast so I have charge it for every use and in the starting its sound was very smooth but the whole trimmer vibrates and it becomes very difficult for me to make sharp cuts . I cannot use it for styling my beard in starting it gave clean shave but now it leaves some hair behind.