The demo is certainly short! But so far a enjoyable experience! Whilst I can't say much... the only major problem I had so far while playing the game was that I have to wait for the screen to "catch up" to see enemies in the direction I was moving towards. Although that isn't too much of a issue in itself, but having it so that the screen move towards where you are pointing your cursor would be nice!
On another note... wasn't as scary as I was expecting! :P