Product review (3 stars): Like it don't love it.
I love the look of the hood and it does the job over removing fumes better than my previous one but I have a few gripes.
 There seems to be no difference in sound or air movement across the three speed settings. Doesn't matter which button you press. I'm pretty sure they are all the same. Not sure if something is wrong with mine or the 3 buttons are for show but I'll take off a star for it.
The while there is a greater draw than my previous vent the air seems to oscillate some throwing some steam out into the kitchen vice out the vent. I still have had the smoke detector announce that I am cooking when searing meat or sauting greens. Not as often but more often than I think is necessary. Not worth returning but enough to knock off another star.
Install wasn't the simplest. The unit is pretty heavy and the likelihood of holes lining up is pretty much nil. It took a couple of hours and a strong, patient husband and a wife with the power drill to get done. On par with installing any other hunk of stainless steel and a motor under a cabinet.
One feature I love the the dishwasher safe baffles. They will occupy the majority of the lower rack but the come out spotless. Let dry and reinstall.
Overall I like it but if given the chance to try again I might have picked something else.