I looked at a number of these dedicated devices but in the end decided that they were not flexible enough for me personally. In the end I put together my own NAS based on Intel ATOM running Ubuntu server. Ubuntu can be run very well also from simple usb memory sticks (with a few tweaks to cut down on writes) which results in excellent idle power consumption as the main disks are spun down for much of the day.
For many people though, these dedicated storage boxes are the best option.
Biting the hand that feeds IT
