Product review (4 stars): Pretty nice solid range hood.
I normally do the review after using the product for a while. But totally forget this review for a half year. I don't remember all the researches I did before the purchase, so forgive me if something is not 100% accurate.

First, the design. Couple of the similar range hoods (include this one) are from same Chinese manufacturer. And to be honest, for range hood, Chinese or Asian modal have better design than US/European model in term of suction power (as opposed to common sense). Most western range hood just don't suck at all, unless you go with professional grade.  if you do fry, grill, stir-fry. Microwave with vent or indoor circulation type of 'fake' range hood doesn't work, 800+ CFM is what you should looking for.

Second, model number. According to reviews in this product, the manufacturer upgrading their model number without posting it here. If you read through the review you could see the model number evolved from 1801 to 1802 with post-fix number A to Z to whatever they decide to put. The one I get is the newer model at that moment, (maybe 1802N?) I couldn't recall the print outside the box six months ago. The light bright enough for me, compare with some reviews complained about; and I do managed to set the clock successfully.

There is another similar range hood that have remote or have the control pad in the center is earlier version (with some complaints).

Third, installation. The manual is really poor written, and really take some work to understand it. Its probably translated by software rather than human. It really take my contractor some time to figure out all of the details( I hired someone to do the installation and duct work).

Here is some key points during our installation:
1. the vent is 8 inch. make sure you have enough room.
2. need some enforcement on bottom of the cabinate to support the weight of this range hood(40lb?), take them 2 guy to install, so you probably cannot do it yourself.
3. I cannot remember if we did back board.
4. You need power. Power cord come from the top.
5. The vent have to go from the top of the range hood, then you can turn it to horizontal or what ever you like.
6. Need proper vent cover after it go to the roof (called goose neck?). I was told if my kitchen wall is external wall it will be 10 times easier.

Overall:
 --So far it works great on my kitchen. I did a lot of stir-fry of meat and veges, occasionally steaks.  It sucks more than 95% of the cooking odors. 3 baffled filters could be cleaned in dishwasher, but the long oil collector at the very back is too long to fit in.

 --Good for you if you cook a lot of saute or grill, and want to handle the smoke.

 --CONSULT/TALK with some AC/Heater company BEFORE your purchase. You are very likely need to hire someone to do the air vent, and that could cost even more. (cost me $900 , but highest bid is $3000+)

 --If your stove is Gas stove with high BTU, this model might not be enough according to building code. You could end up with commercial grade product with 1200+ CFM.

UPDATE: Take one star out

At the moment I bought this model, it list as 900CFM, but now it changed its stats to 500CFM. Not sure if they downgrade their design in last 6 months or correcting their error. I am a bit confused and not really happy with this change.

If you concern about the performance, Zephyr have a model with 850CFM, at the moment I bought my AKDY their model cost $600ish.