Product review (4 stars): Solid unit, but needlessly lacking refinement (and parts)
This is a solid unit. Nice heavy gauge stainless. Like others said, be sure to order the additional parts if you need to vent this unit to the rear or adapt to a 3.5 x 10 rectangular flue to a round flue. Also, this unit does not come with a plug, so if you are plugging it in you need to purchase (or repurpose) a cord with a plug. The junction box is in a tight spot and a bit awkward to reach, but workable. There are two fans, and each has a plastic shroud. Upon turning it on, one fan rubbed the shroud making a lot of noise. You can adjust the fan on the motor shaft, but there isn't much room and it was quite a chore getting the fan blade adjusted so that it neither rubbed the shroud nor the fan housing. In the end I had to loosen the screws on the shroud so that there was enough clearance. I hope a screw doesnt end up in my dinner.

There are four knockouts for mounting this unit to a cabinet. There are drywall screws supplied with the unit. I drilled some extra holes or more screws as this is a heavy range hood (just under 50 lbs.), and four short drywall screws into a particle board cabinet base seemed insufficient. Additional screws also reduce any vibration that causes extra noise.

The unit comes with round wire screens to mount to the fan shrouds. However these contact the fan motor shaft making extra noise. I removed these as they really serve no purpose.

Once mounted, wired, and fan adjusted, it works well.