I wasn't sure where this book would take me when I first started reading it, and I think that's the feeling that Peters intends to evoke. The idea that we're all stuck in an endless office building with no way of finding any greater meaning is certainly relatable, and Peters delivers the narrator's growing frustration in a very believable way, given the unbelievable environment. Furthermore, the structure of this book is compelling and kept me turning pages - two chapters for the maze, then a third chapter which focuses on the narrator's relationship with his family and particularly his Grandmother. With this in mind, the 'missing' 60th chapter is deeply bittersweet.
My favourite narrative is the story of the narrator and his Grandmother. She's a lively, outgoing, busy person; he's inward-turning and hurt by his parents' lack of care and divorce. The narrator gives us only glimpses at his life, but usually they are centered around the ability his Grandmother had to push him onwards and force him to keep engaging with life, even when he rather wouldn't. She doesn't apologize for having her own needs and desires, but she's always there for him, too. She's a great character, and her absence in the narrator's life is always going to be central for him, whether or not he escapes the maze. The 'real' chapters gave weight and meaning to the 'fantasy' chapters so that both came alive, and the book as a whole is greater than the sum of its parts.