I m using this trimmer for 6 months . Earlier while I am using there is no problem but after somedays my skin willbe allergic when I trim beared for this trimmer.so finally I am not using this .I have another trimmer which is philips QT4006/15 This is better than this.Charging time is also very bad .I think in this model company should improve thier quality.
Note - If your skin will not allergic then this trimmer are useful those but not for me.