Full kitchen update.  Needed an over-range micro but previous model was ineffective in diverting steam from front stove burners.  The push-out vent was THE ANSWER !  With 4 vent speeds, steam is blownup and away- no more condensation on micro door!  Love how the back vents tilt down to 'scoop' steam upward.  The 2 lighting levels (hi lo) are brggt enough to illuminate entire stove area.  The only draw back is timing is 15sec intervals but im used to it now.  If you need extra ventilation with over-range micro-- look no further.  This micro is a winner.