Product review (2 stars): Volume of air is very poor
The unit looks great.  However, the air it pulls is very poor. Broan sent a tech who agreed it's not pulling as it should, but Broan refused to replace it saying that it was installed too high from the stove.  That does not affect the amount of air that the fan draws.  For anyone buying a fan unit find a store where it's set up and you can see how it works.  The mistake I made was buying this unit without and not seeing it in action.