Very good, the sounds that the creatures make when just near could be quieter and having a louder shriek, similar to the 'close' noise of the second creature. Overall far more stressful than scary (Which is in no way a bad thing) and most of the rooms are far too easy to just sprint through. While it's amazingly atmospheric and stressful it also doesn't outstay its welcome despite the same thing needing to be done in each room.

The notes left behind are very good as a teaching tool but I feel the near absolute safety behind chairs is slightly too strong. Though that ending is very nice and really had me wondering what was really going on.