Cuts very good, but security problems

The device looks futuristic, and is so small that it even takes even the smallest kitchen. The green is fresh and light. Unlike my large food processor, it also needs very little time to take part in the operation, which increases the chance that it does not end up after a few days in the graveyard for used kitchen appliances, but is actually used.
Very likeable is the thought-out design, the stow three drums. You can slide the three drums each other and then fix it with a plastic bracket - hence they do not crumble through the kitchen and they have been ready to hand.
I found it not so easy, the drum actually fix so the engine block, that they do not fall out again. That already needed to try something. I then, as shown in the picture, first tested the green drum with an onion - and that was not as pretty as in the picture, the onion was partially crushed rather than cut. If you have to cut large amounts of onions for stew, it fits, but so pretty onion rings as in the photo, it was not with me.
Then I tested the rubbing with parmesan and that was great. Very good indeed. I guess, the unit developed its strengths rather the rasping and cutting very firm vegetables worry, like carrots.
The rubbing was a Schwupps that really saves work.
Conclusion: Probably the only thing I will not cut it with this device, are onions. Everything has to be grated, is in good hands here, a real labor savings for künfige salads, soups, cakes.
The star trigger there that the connection between the engine block and the drum is tricky if you are not exactly the right spot to place pressures drum drops out again. And, even if the plastic part in which the vegetables are supplied is not yet locked, the device starts running. The button above is so appropriate that we once accidentally comes fast on it. At the first fiddling I had rasped me almost the fingers ... This machine is not safe, it requires concentration and therefore does not belong in the hands of the elderly and children. If the power button would be located on the back, so you do not reach it with his arm, the device would be more secure. Of course, should to replace the drum the plug be pulled out, but this unit charges a little one to errors.
So, overall a good, convenient device for people who want to especially much rubbing and rasping or need and after a little practice an easy to use, practical part.