With the knife I'm halfway routine, and it works well and quickly. I hoped it would be an advantage to the orange peeler. But it takes longer and longer matscht. Quite simply because the peeler is not as sharp as a knife. Especially with oranges with a thinner shell you have a lot of trouble with Gematsche because you have so hot pressing and tearing that the pulp is still damaged.
I gave him several chances, but I no longer use the Lurch orange peeler, because it is much better and faster with a good knife.
For a child, it is perhaps less dangerous than a knife, but whether a child so that an orange gets peeled ... I do not know.