Product review (3 stars): Nothing unexpected in this inexpensive unit.
This is a get-what-you-pay for situation. I have no complaints, but let's face it - the unit is an inexpensive, lightweight, unit. To be specific:
The air flow (suction) is minimal - it just barely catches the smoke from a steak in a pan.
The unit is shallow, this also reduces its ability to catch smoke.
The light bulb cover is a flimsy piece of frosted plastic that's barely clipped into the unit. It only covers half the light bulb, and unless you're tall, it's sort of in your eyes.
The fan is neither loud nor quiet. We use it, but are happy when it gets turned off.
Mine did not come with a charcoal filter, so if that's important to you, you might be disappointed. Mine has a flat mesh type filter directly over the fan blades.

We got a new stove and needed a range-hood to spruce up the installation and to protect the cabinet above the stove from heat. This unit accomplished those goals. Buying this inexpensive unit was a short term solution, as we plan to replace the cabinets next year, and will look into a higher quality unit then. We needed something fast and cheap now so we picked this one. I knew what I was getting for $40 so I have no complaints.

I chose 3 stars to indicate that it's not a high-end item, but wouldn't score it lower than that because the price is appropriate.

I will add a photo.