Product review (4 stars): Great design and function, odd controls
Excellent hood, and I love the narrow design.  It really moves a lot of air.  The baffles are easy to remove, clean and reinstall.  The LED lights are bright and light up my cooktop.  The quiet mode speed really is very quiet, the medium speed is also quieter than I expected.  The high speed setting is about as loud as the low end consumer hood this replaced, but of course, it moves about 4X the air. My contractor did the installation, but it wasn't difficult in his opinion.

The only downside, and the reason for only 4 stars, is the odd control arrangement.  This really just needs a 3 position switch for the fan speed, not a 2 position Hi/Lo and then another switch to override that with Quiet mode.  It's nothing that you can't get used to, but just odd.