We've only had the 2 ovens installed for a  month, but so far, everything works well. I love the slide out rack. We have yet to try the air fryer and other goodies, but looking forward to checking them out. One concern is the oven timer automatically shuts off the oven at the designated time. That is a problem when baking bread, etc.  If I can't figure out a work around, I'll switch to another timer.