Hot take: Neil Josten is not an unreliable narrator, and every reason people who thinks he is is because of his personality and the way the books are written. aftg is written in third person limited. so of course if Neil isn't paying attention to something or doesn't care about it, that piece of info won't be included. But that's just the nature of that point of view. that doesn't make him an unreliable narrator, that makes him human, with priorities and goals. the only part that could be unreliable is that he chooses to actively not think about things, therefore depriving the audience of key information. like his actual name, his natural looks, etc. though once again, I'm not sure this makes him unreliable, I think it makes him human. people don't tend to think about things they don't like about themselves or their loves, so it stands to reason that those pieces of info would be omitted from the narrative. because in the end, even though it's written in third person, it's still Neil's thoughts and it's still him telling the story.