Product review (3 stars): Not as good as I thought.
The package arrived undamaged; the unit checked out fine.  The unit came with a DVD and an 1 page instruction book.  Why a DVD i cannot explain.  I found the same info online.  The directions however did not mention where to attach the screws, nor were there any screws for mounting.

The knock outs for the mounting screws, ( provide your own, without any mention of it in the literature) did not knock out, but needed to be drilled out.  The collar extension for the 6 in round duct is made from flimsy poly plastic and attached with two screws on a hooking lip.  That was a poor design, as I had to remove the vent hood 2 times, because it separated from the top of the fan twice, while installing the duct work.  Aluminum duct tape was the fix.  ( There is irony here because there is a lot of precautionary mention of fire and sealed duct work in the literature, but they supply a milk jug poly material for the extension collar ! )

There was no template for mounting, I called tech support ( they did answer the phone without too much hold time, a bonus )  We discussed and joked about the lack of info provided, from China.  I was directed to the same video I found online.  From there it was simple.  The unit is light, but two people make install easy, especially when drilling the screws into the cabinet. I used  #10  1 1/2" stainless screws with washers on 2 of the screws.  ( no room on the other 2 screws for washers).  The unit is quite solid and level.

The electrical wires are a bit short, but workable. Tech support advises hardwiring the unit, because of the fact that using a plug could max out the 15 amp service of kitchen GFCI's.  ( Again, more irony, because the power for the hardwiring comes from a 15 amp service from the kitchen GFCI's )  None the less, i opted for the plug in, with no problems.

The unit is fairly quiet.  Again this is subjective, because acoustics are different in each kitchen.  The unit, however does evacuate smoke for most cooking, but VERY POORLY for the self cleaning feature of the range.  There is a mild increase in draw, as well as an increase in sound,  without the stainless grilles.  The grilles do catch grease, but they are flimsy and easily twist upon removal and insertion.  The  LED lights do a good job illuminating the stove.  We have a black stove with black 20x20 tiles on the black splash, and the added light is helpful.

Opening a window a few inches will help with the necessary make up air needed to ensure maximum air flow.

The controls are hard to see/use, and are not back lit.  To use them, I have  to duck down and look up under the lip of the vent hood. I imagine with time we'll memorize the button functions.

In summary, the unit works, but there are several things which took away from the perceived value of this unit.

Update:  After having this product for a couple of years, It is obvious that the draw is not near the rated CFM.  I personally installed the ducting and calculated the measurements per industry code.  Smoke will plume around the unit when cooking.  Frequently at greasy film is on top of the unit, telling me that it does not work as it should.