the oven is actually not bad, but: the first unit stopped working after 14 months, the top heating elements and we got a replacement unit. Now after a further 12 months of the same defect also the replacement unit! I think there is not at random, rather to poor quality ... That is now no complex technology, so I have little understanding here. My first mini-oven from GDR production holding> 20 years, let's see if I such a part again auftreibe somewhere.