It's Control with some Alan Wake thrown in. I kinda don't think the two style's congealed well though.
Every time you get in low health and all the danger red is on the screen on top of the darkness, it made a combo where I couldn't see anything. The using tk to carry flashlights was neat but it never really felt like it mechanically went far enough. I also almost regret saying the stronger/spongier bosses of the main campaign were lame because I REALLY didn't like the final boss of this DLC. There was definitely an attempt at intriguing boss design though. The tells for his attacks could've been clearer imo.