Product review (4 stars): Good hood.
I bought this fan due to it's high CFM rating.  Easy to install, but a template for the duct/screw holes would have been greatly helpful.  I had no existing ductwork and everything had to be created.  Agree with others as far as replacement with LED light - makes a big difference.  Duct connection onto the hood, just slides in - very easy.

They have added instructions, but not too great though.

The hood came in a protective green plastic, which was easy enough to take off, however there was plastic underneath the nameplate.  As I was trying to get it off with lightly scoring with a sharp utility knife, I noticed the nameplate wiggled.  I inserted a thin putty knife under it and slowly loosened it and pried it off.  The green plastic was under the nameplate - would have been better if that was not under the nameplate.  I tried to put the name plate back and it was too woobly.  I didn't care for it anyways, I will find an alternate solution.

If you have existing ductwork, installation should be very easy.  Most of the time spent for me was for the ductwork.