Product review (2 stars): Fan off balance
I've had my unit for about 4 months, and as other reviewers have suggested, that the fan is making loud rattling noise. It sounds like the fan is a little off balance and the problem is semi-alieviated on the highest setting, but it is still really loud.

I bought this one because it claimed to be quieter, but I guess I could have spent $50 less and gotten the same quality. It does dramatically improve the air quality in my kitchen/apartment.

Has anyone else been able to fix this issue?

In other news, installation was a breeze after we found some videos on U-Tube and before the drill ran out of power! You'll need 2 people to do this, and it shouldn't take more than an hour. We used the non-ducted option and bought the additional charcoal filters & plug so we didn't have to hard wire anything.