I have the opportunity to again test out some more PS VR demo( tried vr playroom and deep down)
The black box unit that's processing the PS VR stuffs, its slightly bigger than a quarter the size of a PS4.
And wow, you can stand up in the london heist car chase demo! Your avatar simply goes through the car roof

lol
Also tried 2 demos in vr playroom. nothing much to say about it. I find myself leaning near those robot things to admire the amazing details.
Deep down isnt really immersive due to a lack of an avatar body, but its pretty intense.
One thing that i find a little annoying is that there is a focal angle kind of thing. Kind of like viewing stereoscopic content, it can get blurry easily so you have to really adjust and shift the headset before starting the experience.