I bought such a egg boiler while ago, because I had always had good experiences with Cloer devices. As other customers have posted - the hardness of the eggs was always very good. The negative experience, I can confirm. The chef used tear after a short time of use, with the result that water leaking from the device. This I had -in the belief that hatte- Cloer this now detected and fixed then complained directly from Cloer. The equipment has been replaced, but the issue was not so done. After about 3 months (use 1x per week) the same problem was there again. The egg boiler is now recycled and I sit back on a competitive device - no problem. Conclusion: Not recommended!