Wow, that was really fun! The room is quite small, and there are few enough items in there that I think it is not too frustrating, even when players may get stumped. The game makes good use of all three dimensions, and even subtle mechanics like rotating items for inspection. Really cool to see little snippets of writing as well. Ambiance, sound effects, lighting all came together to create a perfect horror environment.
The worst part for me was figuring out the controls that I needed to perform tasks, like crouching and picking up items. It broke immersion a bit when I saw a lighter and a note, but was incapable of investigating them because I didn't learn how to crouch. I actually figured it out by pressing all the keys before I found the note that provided more controls. In my opinion, discovering basic controls shouldn't be part of the game, and could have been added to those introductory sticky notes.
I really enjoyed my time with this, and in my opinion the difficulty (aside from discovering how to crouch) is just right. Solid entry; would play another!