while it's not true VR like what you are thinking of with the Matrix or SAO, this is pretty interesting.
It's like TrackIR's super big brother with literally taping an IMAX screen to your face
And seriously, I had issues with games that incorporated High Wire antics over deep chasms like jedi knight 1 and 2. With this it's going to be nuts to free fall in games.
My only concern would be for how close the screen is to your eyes and what problems may occur from that.