Product review (4 stars): Good for the Price, It Works.
Regarding shipping damage from other reviews, mine arrived without damage, but one long edge of the box had a hole, luckily there was nothing behind that edge so nothing was damaged.

Regarding installation problem from other reviews, yes, the sequence in the manual (mounting flue cover/support frame to the vent hood THEN attach whole thing to the bracket) is best for 9-10 ft ceiling when there are plenty of empty vertical space to work with.  For 8 ft ceiling installation , it's best to attach flue cover/support frame to the ceiling first, then mount the vent hood to the support frame.

Thirdly, my installer commented the support frame is a little flimsy, so the flue twist a little when pushed.  But during daily use I don't find my button-pushing force makes the unit move.  So the flimsiness might exist but doesn't impact daily use too much.

Good:  I cook with high heat and this unit seems to get smell out of the kitchen, so the suction is satisfactory, esp. at this price.
Bad:  not bad.
Ugly:  The only complain is that the baffle filter does not drain into anything (like a grease pan).  So I imagine I have to dishwash the filters regularly.