Personally, I have him now are about 2 weeks and a couple of times used. The handling is easy and especially safe. No more tears when chopping onions. No more cutting in his finger. And best of all, everything is immediately collected in a container and can, if you have too much cut, be sealed with the enclosed ceiling. So I did it anyway. Many many peeled onions, pressed by the Schneidesieb and Zack the container was filled with tiny diced onion, I could always easily take over two days.
The only shortcoming is that the cleaning. While one is in the "normal" chopping onions only a board and a knife in the dishwasher or wash off; Here, the device must be dismantled, so that one has no rest in the spaces more ...
But on the whole I would recommend this onion slicer. If you want to make a vegetable stew, it can not go faster and easier than with the genius. I'd buy it in any case again!