I've been using this hard drive for over 2 months. So far it has worked without problems, connected first time etc. - I suspect that this may be helped by the lack of additional software for backup/synchronization, which seems to cause some troubles in other external hard drive makes.
The drive can draw sufficient power from one USB when connected to my Dell laptop, which is 3 yrs old, or to the front USB port of a new PC. The supplied USB cable has two plugs so that lower-powered USB ports can also be used; this, however, means that the cable is on the large side - larger than the drive itself. In addition, there is a connection point for an AC adapter, which most other 2.5" drives lack (although the adapter itself is not included).
The status light - also missing from most other portable drives - glows blue on standby, and pulsates in purple/red when it's reading data, which looks good. The casing itself is thin and small, and, unlike for most other 2.5" external drives, it is made of brushed metal. This makes the drive feel solid and look stunning, and also feel cool when not in use - hence this may well be the 'coolest' portable hard drive (as most other drives have a plastic casing)... This also helps that the drive doesn't overheat when in use; the operation is noiseless too.
Overall, the drive looks, feels and handles like a good example of German engineering.