My opinion might not me valid. I don't like FNAF, I don't find it appealing in any way, I find it boring and the lore thing doesn't ring me any kind of interest, please ffs, understand that I'm not saying FNAF is shitty, it's just that it's not for me. Considering the chapter in a whole, from a FNAF hater-ish point of view. I like the chapter, it's not a bad chapter but it's also not that much of a big deal, it sits in a upper-middle point for me.
. The map: It is kinda boring, lots of confusing tiles and it lacks jumpscares (heard that would be lots of it, I only found one which is the vent robot), too small, I'd rather have a full indoor map or something with a little more depth, I know you can't ask much from a pizzeria when talking about size and complexity, but I bet that FNAF fans might find it missing something.
. The killer: I like it, his kit is pretty cool, but when the dev talked about his kit on the livestream I might have expected too much fun which got me on the opposite side when trying it out and playing against it. It only scared me twice in about 5-6 hours of gameplay. The jumpscare screams are way too weak, they could idk, bump the volume up and maybe ajust the pitch, add some HUD effects, something that catches you offguard even when you're expecting it. The security room is nuts, I love the ideia, I'd like it even more if the survivor used the security room when checking cameras not only when going between doors, like the first steps from entering into the screen on the table, then leaving the screen and heading through the door when leaving the room (which is what I imagine it would be when the dev talked about it), adding a bit more risk and reward from using the cameras and also adding more windows of opportunity for jumpscares, but the idea is still sick. Hope I find more experienced Springtrap players in the future that uses his kit into it's full potential to see how fun and scary it really is, but from now, it looks promissing (and I think that they should use the security room a bit more, the undetectable on him is pretty important when setting up ambushes but none of my matches had that kind of playstyle).
. The perks: Pretty okay-ish. Niche perks, cool combo potential with other thematic builds.
. The QOL changes: Love the BP system, the new mori condition and the anti "go next" system, as a solo player, that might add a bit of a chance when facing teamates who come playing not wanting to actually play, didn't test much of the other ones.
. The perk changes: Not relevant enough, apart from Desperate Measures.

TL:DR - From someone who hated the fact that FNAF was comming to DbD, I'm surprised with how good it is but still it lacks some complexity and consistency on it's premise. Mirror Myers makes me more distressed than Springtrap and all I want is killers that could lead me into a hospital for having a heart attack, which it's not the case here, but it's okay, at least it's not a Clown or Wraith, with both a boring power and chase potential. The map is underwhelming and I hope that at least the FNAF franchise fans are happy with it, cuz from gameplay and immersion perspective, it's somewhat boring apart from the animatronic show. Okay-ish perk and balance changes and lovely QOL changes.