Has anyone else read "The Underground Railroad" by Colson Whitehead?

If so, how did you feel about the historical inaccuracies? Specifically, I found the depiction of the underground railroad as an actual train line to be confusing and misleading. I understand it is a work of fiction, but I found the magical realism a little discordant after the seeming accuracies of plantation life depiction. Also, the South Carolina part seemed unlikely. I haven’t read criticism yet but plan to. It is a briiliant book.