Product review (4 stars): good range hood but a sucker to install
first of all, we just installed it and haven't officially used it yet as the house is still undergoing the remodel. so my review is more on the installation and 1st impression.
-Installation-
as previous reviewer mentioned. the vent on this range hood is actually 8" not 6" as stated in the spec over Amazon site. So you must purchase a reducer if you plan to use 6" pipe, unless you want to use 8" vent pipe.
My husband and a male friend and myself install this range hood and it's heavy. especially that when the attached screws head have extremely little tolerance to go through the holes on the hood. We hold up the range hood, mark the holes and drill the screws in place, but we had such hard time to fit the screws, mainly because screws head are just hair smaller than the holes on range hood. So we end up removing all screws; holding up the range hood, and screw each screw in place. due to our cabinet is solid wood, we have to pre-drill first, before screw on the screws.

-installation manual-
need improvement in explanation. you can tell it's done/translated from a different language (like all things made in China). it could have been more detail, especially for those who want to install this product themselves, not by professional.

overall looks very nice and sharp. it's built very sturdy (that's why it's heavy"). feels and looks good quality. I love it that you can remove the stainless steel filter and place them in dish washer every so often to keep it clean. I picked this 900CFM, because i hate smelling food in the bedroom. although I don't know how well this one work. I'll update the actual usage later.

UPDATE AFTER 1 YEAR USE:
I cook Chinese stir fry, Indian curry dishes, which have strong smell. The range hood works wonderfully. Then for no reason, it stop working. Because it a very sleek touch panel control, we had hard time to figure out what went wrong. So we contact AKDY, and described the issues of what works and what don't work. 2 days later, we received an email from their customer service engineer, Bryan F. He has been very helpful and right away sent us the circuit board and the control panel free of charge, together with the detail diagram of how to change. We change the control panel and everything works perfect, right in time for the Thanksgiving cooking. The service is outstanding and fast.

CONCLUSION:
We love this range hood. it works as expected. and how AKDY provide the customer service is why we highly recommend this to those who is considering this product. We have received a lot of compliment of how sleek it looks in our kitchen.