I wanted the device basically only have to make my nosy neighbors have no chance at "from the dustbins fallen" personal papers of mine who read immediately. If I now "paper wegbringe" "Knüddel" I strips of the device again in the real trash. Who composed again, it has also earned the reading ;-)
I also made the mistake at the beginning of "stripes" of several papers. That should not be done, but the device is not designed. I thought the unit would be broken, but it was only a die-hard "paper Knubbel" which made everything move wrong.
I oil from the machine and impregnated with a rapeseed oil A4 paper. Whether one should do I do not know, I mean it would run smoother and quieter.
The price is a real bargain!