What a crappy product!
I was used to a Phillips clipper before, which worked well for years, but was due for replacement. After reading some good reviews, I thought this one was fine. What I immediately noticed was that it didn't shave as close as the Phillips. I also immediately had some doubts about the motor. It changed speeds a lot, as if it couldn't handle it or something, even if you just held it in your hand without doing anything. But okay, it worked and I didn't feel like sending it back.
After a few shaves I had to recharge it. I thought that was a bit fast, but fine. However, this got worse and worse after the second charge. I can now be happy if it lasts for fifteen minutes. And I haven't had it for half a year yet. In short:
Poor motor
Battery life is not achieved by a long shot
The minimum number of millimeters does not really seem to be achieved.
I would keep looking if I were you!