I loved the NAS 2.0 last year when it passed through my test bench and the NAS 3.0 has displayed a step in the right direction for Addonics' budget price NAS line. The NAS 3.0 not only brings the same great features as the NAS 2.0, but it's also ushered in WebDAV support, a greatly improved web GUI, and even faster speeds in my benchmarking. Although USB NASs' have dropped a lot in price over the last year, it's still extremely difficult to find one at this price with this many features - most of the competition in this range is limited to often being only 10/100MB/s capable with much smaller feature lists. The NAS 3.0 is available through Addonics directly and several other online retailers.
Great set of features for the price
WebDAV support - something not found on many NAS devices
GUI design has improved leaps and bounds over the NAS 2.0
Performance gain over the older NAS 2.0
Printer port can function are secondary read-only drive sharing port
No native USB 3.0 support yet (USB 3.0 drives will function at USB 2.0 speed)