Product review (5 stars): Simple installation and excellent airflow.
Simple to install. Twist together the white wires from the fan and light, and use a wire nut to attach them to your homes own white wire. Twist together the black wires from the fan and the light, and do the same.
  There are holes in the top of the hood to accommodate screws to mount under your cabinet. It took me about 10 minutes. It's metal, cleans up well, and moves quite a bit of air. Low noise level, especially if it's mounted tight.
  You can vent it up through the cabinet, which will require a 10 inch duct, if I remember correctly, and knocking the covered vent hole out of the top of the hood. Conversely, you can leave it as-is, and it'll vent out the front of the unit, with the airflow directed upwards.
  With fewer stores carrying these smaller 24 inch range hoods, it's nice to find them at a decent price. It's not the prettiest range hood in the world, but it's also not an overpriced 700 dollar fan. The simple installation and efficient air movement make it a winner.