Product review (2 stars): Very hard to mount, extremely loud high speed, and the quality of the stainless front is horrible.
I replaced another Broan stainless under-cabinet range hood with this one because I liked the more "substantial" look of it, it had led lighting, and had two fans inside instead of one.  First of all, it was very difficult to mount because of it's height, and it was so hard to wire and screw to the underside of the cabinet because there was very little room inside the fan to maneuver because of the dual fans and the other components. It took me most of a day to get up.  It has two speeds, and like many other range hood reviews, the low speed was too low, and the high speed sounds like a airplane in your kitchen.  Worst of all, it does not have any more "sucking" power than the single fan Broan it replaced, and is actually worse than the old one. In addition, it vibrates more than it should because one of the fans is out of round and "wobbles".  But really the worst thing about the fan is the stainless steel finish.  The stainless on the sides is is very nice, but the steel on the front side looks like it was finished with a steel file.  Stainless steel finishes vary from appliance to appliance, but this is just ridiculously coarse. I should never have installed it, but I did not realize how bad it looked until I got it up and compared it to other other stainless appliances.