Decent design, good audio and sound, but very directionless and empty - wasn't a fan.
The game did jump scare me in the first minutes, but that's just because I was clueless. There are no given tasks, no indication of what to do and how the demon works, which really breaks the immersion. I would suggest having more straight forward approach, even for a game made in 1 day - simplicity is the key, not ambiguity.
Good luck.