Was definitely creepy, full of psychological terror and horror elements: seance, possession, self-mutilation, use of poop and rats and noises in the dark, gore, etc.

Did definitely capture the toil and dreariness and soul-sucking nature of being beaten down and discarded at a retail job; Basil was so into the nonsense corporate speak and was judgy of Amy's viewpoint that it was 'just a job'.
I did think it was a poignant description of Amy's life position: she was on a hamster wheel spinning and she couldn't get off, she could never make ends meet and was perpetually sliding deeper into problems mostly surrounding money and the system.
Was interesting to delve into her 'accepting her place' in life while strapped to the chair--maybe the most relatable and scary moment in the book, and also so depressing to face that idea of never having a sit-down job. (from a literary stance though, I didn't feel like this chair element and her reactions to it was handled well afterwards--she seemed drawn back but was able to shake the experience off entirely? never tempted?)
Overall I was grossed out, spooked out and found it moderately thrilling
Was fun to read physical book aloud to Ben but also I may have felt it was more intense via different method.

After reading other reviews:
-do feel the 'lore' element was under-developed/never explained
-did have a somewhat slasher film vibe (not a negative in my mind)
-did feel like the characters were immature
-'horror parody' is an understandable description for me, though mostly not my sense of humor
-some nonsensical bits: why have 5 pairs of handcuffs? What was the point of all the ghost hunter equipment for it to be mostly never used? The ending wasn't to my taste. The characters all make terrible/stupid choices throughout...