The game definitely has potential. There are some issues - controls and voice acting, mainly - but it is effective as a horror experience. If those issues can be ironed out, and the content expanded, it could be a great throwback to old PS1 survival horror games.
I completed the demo too... I found a bug: in puzzle room, when you get the Left Hand Key and you press too fast (I think)... you can get stuck on screen like this: 
By the way, nice game... That boi that trades for toothwheels has nice animations, and when he said "firepower", nice...
When Alisa responded with "The Doll House?" "No really?" is funny!