Product review (3 stars): I don't like expensive replacement parts.
This is not a cheap hood.  Albeit, it is 42", not the standard size.  The body lines are good, although the seams are too visible.  The side light panels are cantilevered by 2 screws in each panel, and for now, the light panels sit tight to the body, but I don't feel good about its longevity.  The fan is quiet at speed 2, but noisy at the next level.  #2 works well enough.  The damper is 13 inches, not the standard 10.  I had to make my own reducer, having standard 3x10 duct to outside.  Biggest disappointment is the control circuit.  Seeing the push buttons in the photo, I hoped the buttons would be more robust.  But the buttons push on the same micro switches used in other cheaper appliances with plastic cover, touting themselves as "touch controls".  I had micro switches fail on 2 appliances and replacements were total swap of the expensive circuit boards.  There are 3 filters.  The filter frame is weak and the mesh is just a step above the cheap filters found in box stores.  They also have complicated latch that is not confidence inspiring.  Broan Allure vents have much better filters and install system - simple and robust springs.