What I think Oculus really nailed down was the controllers. Playing Robo Recall, I can sometimes even believe I'm holding an actual, although lightweight, weapon on my hands.
That said, resolution is not the greatest asset. I doubt this device improves on that – if anything it will probably be worse.
What blows people away is not the display, it's the head and position tracking, of both the HMD and the controls. It's amazing how you can "see" them and accurately pick them up on a table. I hope this device has that.