First of all, my review is based solely on the use of a hair cutter, not a beard trimmer / trimmer, to me, the cutting head would be too broad, use a beard trimmer for the 3-day beard. Very good cutting performance, no picking, no tangles, good uniformity, surprisingly quiet (am a Udo Walz "Rattermaschine" usual). Compared to more expensive equipment (such as rolling) I am extremely pleased with this cutter, the actual quality will have to show over time. Sorry, no battery level indicator (LED that power adapter is connected), also no charge termination, although something today really does not cost anything more, but universal and very compact charger for all voltages. Cleaning bit fiddly, especially acceptance and placement of the length of the ridge. Something strange also that no oil is added, because the blades are certainly not "self-lubricating" (no ceramic, etc.), but precision mechanics oil has mostly domestic - or even what's left from the old bottle of hair trimmer ;-)
Update 05/28/15: Super performance on battery, the best thing is I've ever seen :-)