Just play it. Don't look any further into it or spoil yourself. Just play it

Maybe the single scariest game I've ever played. If you like feeling the hair on your arms stand on end, then this game is for you.

First of all, this is more of a mixed review than a negative one, but I feel obliged to bring attention to things that might be a deal-breaker for some.
I went into this game completely blind and got my money's worth. Finishing the normal mode only took a bit more than an hour, during which I came across a few scares that caught me off guard and only a couple anomalies I genuinely could not pinpoint, though I didn't think too much of those.
Then I tried streaming it to a friend, which ended up being a huge letdown for both of us because for about 40 minutes literally nothing would happen in the game. It was really embarrassing when, after talking about how great some of the scares had been, all I could show were missing mats, upside-down chairs and slightly different colored curtains. I know not all of them are gonna be winners, but these "anomalies" are such boring unnoticeable filler that, unless the game somehow prioritizes using the better scares for your first run, a new player could get unlucky enough to not see a single actual anomaly for quite a while.