I played the demo at EGX Rezzed for about 45 minutes at the Square Enix stand and it was great fun. The demons are scary and I love the way you run away from them by hoping from body to body.
I would definitely get this game! Actually, they gave me a £5 off leaflet for pre-ordering with GAME.
Shame they didn't give away any of the cool t-shirts with the 7 bullet holes. The two girls there recognised me from the Hamleys launch event for Lightning Returns which is nice.