I've watched a few of PewDiePie's Let's Play videos and it looked pretty scary. At parts I almost shat my pants just watching the gameplay videos. From what I've seen the best part is when
you arrive at the Male Ward with the crazy doctor and stuff.
I just recently started playing it and so far it's not that scary. I was a little scared going into the game because it's hyped up as being scary as hell but so far, it's not bad.
One of the best games I have ever played. I suggest playing it with headphones and the lights off. It's really an amazing experience if you like to get scared