Product review (3 stars): which is good. The microwave functions as expected
The first unit we had failed after 5 minutes of running the oven.  The microwave portion kept working, but the oven died during the pre-heat cycle and totally powered off.  The 2nd unit we received to replace the DOA unit had issues with the microwave door.  It didn't open when you pressed the button.  A service person came out and adjusted it, so it works OK now.

Overall the alarm is quiet but it keeps beeping, which is good.  The microwave functions as expected.  The convection seems to cook baked goods well.  Hopefully this unit can stand the test of time.