This book seems to be popular right now, its a book about an autistic character (and a verbal autistic character who isn't talking about Asperger's even rarer in terms of what gets written about), and I read it earlier this week. So, it seemed straightforward that I should write about it, seeing as I had some strong opinions, both positive and negative about the book.
Overall I think the book had the most accurate portrayal of autistic character I've read in fiction. It did get stereotypical at times, but less so than usual when dealing with autism and fiction. The characters also were actual characters, not just "lets read the DSM criteria and call that a character", as well as were actually allowed strengths, even if the strengths were stereotypical of autism. Things like sensory processing were actually taken into account, as well as stimming being helpful to the individual. Beyond just the autism itself, there was also getting into how people treat autistic people, the fact that different people have different views about their autism, and those sorts of details.
The number of details was impressive. The author mentions in the section after the book that she has an autistic son who's in high school now, and it shows that she actually knows something about the spectrum. It wasn't just someone writing about autism because its the current popular subject. That was definitely a good thing.
But, of course, it wasn't done as well as it should have been. Overall my views was that they took a good thing and they ruined it.
(After here, there will be plot spoilers, so here is your warning)