It is lightweight, extremely quiet and virtually no heat, even after copying data on it for three hours.
The only negative because we must find one, is the plastic housing; I would have preferred a brushed steel as on my old Iomega Prestige, but the hard drive is much better, and that's the important thing!
Moreover, it is 100% compatible with the Wii, it's good to know.
In summary, the best in class for me, and at a very competitive price.