Product review (5 stars): The lights suck. They illuminate little, but set the mood for whooka-chickee with your chickee if she's so inclined.
1.  The lights suck.  They illuminate, but not much.  Having read the reviews about the lights, I installed two 4 inch LEDs to the left and right of the vent hood.  I get plenty of light because of them, not the lights in the hood.  I do not know if they can be changed out for brighter bulbs.

2.  Its loud.  Having read the reviews I expected that.  And, given the units CFM, I expected that again.  You don't get to move a lot of air without noise unless you spend a ton of money on development.  This was a sub 400 dollar fan so I didn't expect much.

But here's the rub, my fan makes a strange noise in addition to the normal "fan noise".  SOMETHING is loose inside the fan itself.  And since I have added this hood to a custom installation, along with a custom one of a kind duct....I have noise  I need to pull the fan from beneath the unit and start to find out what the heck is going on.  The noise is irritating.  Fan noise I can live with, sloppy sheetmetal welds (or whatever is making the noise is a bummer.  Man.
****TIME OUT>>>>>  The noise done gone away.  Happy guy now.  For whatever reason, the noise in the fan has ceased.  Gone to meet its maker I suppose.  Pushing up daisies as it were.  Or is.  So....upgrading my review in August 2017.  ******

And since the whole thing is bolted to the ceiling, and since the worker bee guys did this on the last day of the kitchen, and since its too big a damn hassle to remove it from the fancy ductwork, I am stuck with it.  Slightly bummed.

The unit looks great.  I like the removable grates.  The lights stink.  Its loud.  It moves a lot of air according to the seller.