The Pieker Emsa is good and stable quality. The plastic is sufficiently stable and fixed, the whole mechanism works well. This is not self-evident for eggs Pieker how I experienced before. Maybe I was unlucky, because the Pieker I got, initially only worked from time to time. After careful examination it was found that the needle to prick, a little too deeply seated in the unit. I then the part is not returned, my ambition was piqued and I have the "Superline egg Anstecher" then pimped himself with a sewing needle. Now he is working properly. But because of the action unfortunately only three stars.