My oven repairman has warned me off these ovens…for now.
He says that the current model of oven has gears with very fine teeth and they grind down relatively quickly, causing the conveyors to work improperly. He says he doesn’t want to service them anymore, because having to make repeated visits in a year for the same issue makes it look like he’s a bad repairman.
He advises waiting to see if this issue is addressed in the next model.