Product review (4 stars): The high speed is pretty intense, noise wise
The lightbulb change is a bit of a pain.  The LED lamps I used are so low voltage that they defeat the ability of the high and low light switch. I should have known.  I am using this item in the recirculating mode and self installed.  Installation wasn't too difficult, even working by myself, but another set of hands would have made things much easier when it came to mounting the hood.  As far as the fan goes, the low setting is effective if I'm using the rear burners on my cook top, but it lacks the airflow to pull in air from the front burners.  The high speed is pretty intense, noise wise, when compared to low.  Expected, I suppose, but there is a side effect.  I'm not sure if I would call it 'resonance' exactly, but the large flat plane of steel can vibrate loudly on high speed.  I'd like to think this wouldn't happen if the hood were set up to vent to the exterior, since the little slots cut in the top are very restrictive when compared to a 7 inch vent.