Product review (4 stars): Pleasantly surprised by quality.
Just unpacked and tested it. Wow. The build quality is much better than expected. Packed very securely .  Free shipping from CA to NC in 3 days. The led lights are bright, the fans move an incredible amount of air and are relatively quiet compared to a Broan I had that moved less than half the Cfm that this is rated for. The grease baffles are very well put together. They look like the ones on  professional hoods in commercial establishments. One thing I noticed is that with the 8 in to 6 in reducer there is a mild drop in airflow. I would recommend 8 in pipe with no reducers for entire run to roof.  I will amend this intial review after I install it next week.  It is being installed above a 30 in Bluestar range with 22k btu burners. Stay tuned...