The release says that the electronic approach marks an improvement over conventional steering, noting that it, "Transmits the driver's intentions to the wheels even faster than a mechanical system and increases the direct driving performance feel by quickly and intelligently communicating road surface feedback to the driver."
The "feedback" involves a camera mounted on the rear view mirror that observes the path ahead.
The end result, according to Nissan, is that the system somehow "insulates" the vehicle from various bumps. "Even on a road surface with minor ridges or furrows, the driver no longer has to grip the steering wheel tightly and make detailed adjustments," the release state.
That's all assuming the driver-to-wheel "call" doesn't drop in the first place. The onboard navigation screen is definitely one place where you don't want to see the words "transmission aborted, try again later." Chances are you wouldn't have time to contact the IT help desk.