Product review (5 stars): Nice range hood for the price
This is an excellent range hood for the price; very professional looking.  The unit is very powerful.  I have it funneling down to a 4" dia duct which is original to the house. I know this is not optimal, but the hood still operates better than expected.  Because of the reductions, the hood is a bit noisy, but I wouldn't say it's any worse than the microwave vent which was there prior.  The led lights that come with this unit are terrible, so I swapped them out with some Phillips GU-10 flood LEDs from a home improvement store. They were a perfect 1 for 1 replacement, and provide better color, spread, and lumens than the original. I highly recommend anyone who purchases this hood to swap those out.