The jumpscares are scary and unpredicteable, and I like the way that it has a messaging function. It keeps trying to access my camera and location, which while it is likely a feature of the game I'd prefer to keep off. It would be useful if there was a setting to prevent that. Also, the upgrades are way too expensive.
Overall though, it is pretty creepy and fun, though I wish it had a more consistant storyline rather than just 'look behind you' and 'I'm watching you'.