Product review (5 stars): Good value but tough install.
I chose to give it 5 stars because it is a good value, HOWEVER, it was quite difficult to install.  The instructions required a lot of study and assumptions as well as being incomplete.  It took 3 adults to do the final install.  It is too heavy to lift over a stove with one person.  One of us held the exhaust pipe so it would not fall, while the other two people lifted each end while inserting the power cord.  Even though I carefully located the screws that hold up the hood, they turned out to be all wrong and had to be re-drilled and re-screwed with the hood in place.  It was satisfying to finally get it installed and it works great!