After only 14 months light use, my oven failed completely after I used the Pyrolitic cleaning programme, which is a key selling feature of the oven. I am now reluctant to use this feature, in case it happens again at a cost of £160 to fix it. De Dietrich refused to repair it under their "Free 5 Year Warranty" that I registered the oven under when it was first installed, as they claim not to have any record of it on their database and generally have a very unhelpful attitude. "Computer says no" syndrome! Be warned, if you take up their so called Free Warranty, make sure you get documentary proof. It is quite complicated to use - with numerous key pad pressing to achieve the simplest of tasks. I am OK with it as the main user, but other family members who only use it occasionally have problems.