Product review (5 stars): DIY problems now solved
UPDATE: We finally got the Kaze installed and are now very happy with it. We just lacked the skills initially that would have made this an easier diy job. After taking out a small upper cabinet and mounting the unit on cleats, I lined the space above the  unit with flexible sheet aluminum and left the articulated metal duct exposed - all of which combined to create a really great modern touch for our dated 70s kitchen. The exhaust fans work very well though they're a bit on the noisy side. I have yet to find a quiet powerful vent hood however and am happy with the tradeoff in this case.