From The Verge. I think this says a lot:
“This is all well and good, but it’s strange to wear the headset and not actually know what’s happening on that front display — to not really have a sense of your appearance. And it’s even stranger that looking at people in the real world can cause them to appear, apparition-like, in the virtual world. The social cues of this thing are going to take a long while to sort out. Admittedly, it was all a whirlwind. I spent a half-hour like a kid gawping at an alien planet — even though I’d never left the couch. But by the end of my demo, I started to feel the weight of the headset bring me back to the real world. I’d been furrowing my brow, concentrating so hard, I felt the beginnings of a mild headache. That tension dissipated as soon as I took the headset off, but walking back out into Manhattan, I kept replaying the demo over in my head. I know what I just saw. I’m just still trying to see where it fits in the real world.”