Upon installation the unit wouldn't heat!  Appliance store sent out a service tech that declaared the magnetron was dead and indicated it would take 3-4 weeks to get a new part.  Being a brand new microwave I called the store informing them that I wanted a new unit not a new part; it took more than a month for the replacement unit to arrive; we'll see how long it lasts.  How can a brand new microwave be delivered with a "dead" magnetron (basically the engine of a microwave).  Doesn't say much for the QA process. Probably wouldn't be looking at this unit if I just started shopping.