Installed 2 days ago. Convection and bake working fine. Proofing works.  Chef Mike work like a microwave should.  Very quiet fan. Alarm get your attention without being annoying.  Don't know how long the dial will last.  The display and anything mechanical related to it will always be weak points on any .appliance.  This is the reason you get the longest extended warranty available for the high price tag for these units.  Will review again at a later date.