Product review (4 stars): Broan Allure QS2
I recently bought this product and am very happy with it.  Assembly was a little tricky, especially since I had an old hood that I was replacing.  The screws that held in the old hood were not in the same place as the screws for the Broan, so it took some work to get new screw holes lined up.  The design of the holes for the hanging screws are such that there is a wide opening and then the screws slide into a slot.  There wasn't enough room under my cabinet to slide it in.  I needed a second person to hold it while I screwed it in.  Otherwise installation was easy and the documentation was very good.

I put a big scratch in the front while installing, and I called technical support to ask about stainless steel scratch remover kits.  They were VERY helpful.  Their customer support was excellent.