Product review (2 stars): A lot of the airflow goes through gaps in the light assembly and not through filters
Draws air very well however the lights in the front are not sealed so a lot of the air flow goes into them and not through the filters which are toward the back of the unit (and I cook mostly on the front burners which are under the lights).  When I took it down to tile behind the stove I was very surprised at the amount of grease in the unit (on the parts) that has accumulated since I installed it (2 years). I am thinking this is due to the above situation with the lights.  Also, the fan is a little loud at high speed but this does not bother me so much as the airflow issue.