Product review (3 stars): Quality control is lacking.
Just received the hood and upon inspecting it I noticed that the left corner was missing not one but TWO rivets that the right corner had.  These rivets hold the stainless steel housing to the motor housing. Big thing to overlook.  I found it amusing that there was a notice attached to the hood that stated that the hood had gone through a 100% inspection.  How can you miss two rivets missing?
Well, I've contacted the manufacturer and waiting to see what they will say.
It's not installed but plugged it in (FYI, you need an outlet installed for this hood) and overall it operates well, moves a lot of air and fairly quite.
It seems they need to get their quality control fixed.

They replied that the hood is not in stock and that I would have to wait 2 weeks for a replacement.
They also replied "We are sad to see this. The rivets are supposed to be there, and are not detrimental to the hood not being there, but we completely understand if this does not make you comfortable."  Comfortable?  Rivets that hold the housing together at a critical point (the corner) are missing.
Since the hood is heavy and I'm under a deadline to finish, I'm considering my options.
I guess "Made in USA" doesn't mean much.

If you purchase this hood, make sure you inspect it well.