I installed this range hood for a client and within a week the controls froze up and caused a breaker to trip.  Resetting the circuit breaker seemed to reset the unit, for now.  The ducting port and flexible duct provided with the hood were 6", which is too small for a 760 CFM fan, the recommended duct size is 8".  Based on the CFM, I installed 8" ducting prior to receiving the hood and had to change to 6" after it arrived.  The baffles located on top of the hood are noisy when they open and close.  I would not recommend this hood for future clients.