So now to the things that bothered me. The locking screw is very inaccurate, when unscrewing I had to really pull it back to remove the handle. Furthermore, I would also be afraid when I put the handle on a tripod and a heavy lens would attach to it.
The wheels for screwing have a little game they can rattle when moving. Furthermore, the wheels are for adjusting the shutter speed and the aperture are much deeper grip than with the camera or the original handle itself.
Now something had struck me, because I have given an empty battery in the handle. When the battery in the battery grip is empty, it also no longer makes use of the battery in the camera. He gives the camera simply the signal that both are empty. This is very annoying, because I like getting the battery in the handle give priority. In my original battery grip for my D7100, it automatically switches to the camera. (And yes, I have dealt with in the camera settings priorities)
The rubber grip on the handle is not really different from the originals but it is so bad and diagonally glued, so that one has left a gap of 2 mm and below looks plastic. (But like maybe just at the have been, I have received)
Something not particularly bother me but the one or the other might be but that the front of the grip the Neewer logo is printed. (Can not be seen from the product picture)
Conclusion: Even for the price of 72 to whom I have acquired a grip here at Amazon, I would not recommend it. It will probably at some point again be the originals from Nikon.