I *really* wanted to like this book. It has a lot of things I love–city planning, New York City, art, and eyes on the street. However, the book is written in this strange staccato, only punctuated by vignettes about individual pieces of art and their artists. Part of the problem I had was probably that I read an ebook version which wasn't formatted the way the actual book was, but the overall effect was unpleasant. The descriptions ended up feeling colorless, despite the vivacity of the actual characters, which could be known since they were all real people.
When comparing this to real person fanfiction, it felt to me like Bradbury was trying a bit too hard to be respectful, and wasn't quite courageous enough to have her characters feel things that were wild, or exciting. She might have felt constrained since she used biographies and memoirs as her source texts, but it would have been more exciting if she had gone further with the liberties she allowed herself.
Ultimately, what bugged me the most about this book was the focus on white male artistry. There are vanishingly few women in the book, and no people of color, except for people being objectified. There aren't really any Jews in the book, which is astonishing since it takes place at a time when around 25% of New York City was Jewish. The feeling of the whitewashing of New York Fucking City made my teeth grind. One particularly odd point is that people typically think the story of Robert Moses purposefully preventing buses from going to Jones Beach as a way of keeping out black people has explanatory power, but it's never brought up in this book, even though he's criticized in many other ways.
I think that Bradbury deserves props for her defense of New York City as a place that grows and changes, and that long after the great artists in her book have dismissed New York as a place where new great artists can come from, she shows new great artists living different, but similar lives, still in New York, still making great art. But there are too many frustrating things about this book to recommend reading it for this.