This range hood looks great and was pretty easy to install, but I would not believe the claim on the box that installation takes 10 minutes! Installation is easier if you move the oven out from under first. The keyhole screw holes are helpful in getting the hood held in  place while tightening the screws. I wish the instructions had been more accurate because the wiring instructions only mention two wires from the hood and the actual appliance had three. I had to call an electrician to verify how to connect it. (There were 2 black wires, both of which I connected to the black wire from the power supply.)