I will make another post so that people can see that it's updated
Anyway, finished the demo.
Pretty short but it gives you a tease of what's to come and I must say, fricking awesome.
First controls:

It's pretty simple controls, the standard Xbox controls for a fps.
Right triggers shots the weapons and left triggers uses your powers.
It's feels just like it should.

Graphics: This game is just stunning to look at.
The levels, the water, the fire etc looks great.
Also it very smooth, didn't notice any stuttering while playing.
The enemies looks cool as well. The big daddy is one of the coolest things I have seen in a game.
The light is very fitting considering your location and adds to the mood.

Sound:

The sound is top-notch not to mention creepy as hell.
It reminds me alot of SS2.
The sweet lullaby sung by the little sister is just pretty while at the same time creepy.

Gameplay:

You can only enjoy some of it but it already makes me hunger for more.
It works just like they said it would. If a enemy is standing in a pool of water then just sap it with a lightning bolt and watch him fry.
I can see great things in this.
You can pick up items lying around. Things like food, drinks(yes you can get drunk) and medpacks and other things useful.
You can also find money(which you didn't get a chance to use in the demo) and 2 soundtapes that features recordings of people living in the city that gives you a hint to what has happened.
One particular recording gave me goosebumps.
You never get the chance to fight a big daddy but you do see him in action and it put a nice smile on my face when I saw it because it was so cool.
As stated before, the game is creepy just like they promised it would be.

I was really sad when the demo ended. I really didn't want it to end.
But the game will come out the 24th and that day will be great.