The plot the show actually followed abandoned the premise that the pilot set up and it was clear that the writer was mostly going for what looked 'cool' over what would make the plot consistent or the characters likeable.
The story was hard to follow (and that's saying coming from me of all people), not because it was 'complicated' per se but because there were too many plot points introduced for a show that only ran eight episodes. Also as much as I'm all for 'put your cringe DeviantArt OC in your work' the main villain ended up being too blatantly The Author's Waifu Type at the detriment of the story.
Story aside, the most glaring issue for me was tonal dissonance. Even for a horror-comedy the story couldn't decide whether killing was a joke or not, and there was no narrative weight to the idea that the characters are murderers or 'monsters' because there was no gravity given to the deaths of anybody who isn't a main character.
It's such a short show that I'd still recommend it on the animation alone: it's visually pleasing, and you could binge it over a weekend. The story's nothing to write home about, however. The concept might have worked for a longer story, but with only eight episodes it would have been better if it stuck to what the pilot was initially about.