Pros: You can tell as soon as you feel the box that this is meant to be a high quality product. You can also tell from the sheer weight of the fan that it's built quite well, and the material that the fan is made out of doesn't feel cheap, as many other fans can be. The fan is also the most quiet fan I've ever had, especially when compared to some cheap brand. Also, if you ever have a problem with your fans, although quite rare, you get a SIX YEAR warranty.

Cons: Absolutely none.

Overall Review: Many people disapprove of the color scheme that Noctua has, but I personally don't mind it. When people see my fans, they're like "Noctua fans, nice," because you can easily pick a Noctua fan out with having their color scheme. I would recommend you pick these fans up because I haven't had a single problem with them and they're dead silent.