The atmosphere is genuinely terrifying, but the game is quite hard to understand. Even with the tutorial, it was really tough at first, I didn't realize I had to type the letters shown at the top onto the sign until I read a reply in the comments.
Then when the heath bar appear, I had no idea what to do, I clicked everywhere, nothing happened, and I got a game over third in a row without knowing why (and can't skip tuto). It definitely needs a bit more explanation! Also, having the letter on engines change randomly felt a bit frustrating at times.