Product review (4 stars): Lighting is fantastic. Fans are a bit loud
Heavy gauge stainless steel, Lighting is fantastic.  Fans are a bit loud. Easy to clean Filters. Easy to install. There are 2 exhaust punch out holes that are rectangle and about 3 x 10 in length, one in the back and one on top aprox 2 inches from the back.  Also wiring is on top, about 2 inches of exposed wire to run up thru the bottom of the cabinet.