The specified service life of about 40 minutes is reached, the charging process takes about 35 minutes. Perhaps changing the still, if the battery is repeatedly discharged and recharged. Cleaning is easy, which I've used so far only the brush. At the expense of re-oiling after cleansing with water I could not even bring himself after twice use.
Irritation at the first time: charging has not - as described in the manual - lasted 4 hours instead went the charge indicator from after 2 minutes. Apparently, the battery was already charged by the manufacturer prior to first delivery. The next time you recharge the display has lit up the aforementioned 35 minutes and so it was no failure.
Bad points:
* Relatively loud engine -> does not bother me for a short time but
* No indication of the current battery charge status (as usual with Mr. razors)
* Typical Brown: pretty intense price, but there is at least some good quality (the A conditionally well known, not necessarily the other)
From me it's four stars.