Product review (4 stars): Great range!  Must make your own template!  Use toggle bolts!!!!!
Okay - the unit itself is a good deal - and it works well! So - 5 stars for the actual unit.  But installation -  for the "do it yourself" crowd - is tricky.  So minus one star for install difficulty.

They provide screws.  You are supposed to drive the 4 screws into the cabinet base.  Then - push the unit up - place the 4 screw heads into the matching holes on top of the hood and vioila!  But that is very, very, very, VERY difficult.

So - the trick to installing this unit?  1.  Get some cardboard and make a template of the top of the range hood.  2.  Get some toggle bolts!  Those are the two secrets.

Then - with your cardboard template - place markings where the hood "catch holes" are located.  Then drill up.  Then put the toggle bolts - with washers - down.  Then toggle bolts into the 4 holes.  Then tighten the hood so it is level.  Good to go.

I used 8 inch duct work all the way up and out.  I had to go to a professional HVAC supply store to get an 8 inch roof cap.  But it is worth it.

Also - if you need help you can go to:  ShopRangeHoods.com and "chat" with a helpful person.  Or you can call 626-453-0550 M-F 9:00 AM to 5:00 PM Pacific coast time USA.  If you live in Los Angeles you can go to: 10912 Weaver Ave. South El Monte, CA 91733 for in person purchase or help.

The hood is indeed strong!  No more dirty smoke in the entire house!  But I now have to get a counter-top microwave.  But that's a small price to pay for having no more smoke in the house!