How does the lack of names affect the readers understanding of the characters?

In the way the story is written, I don't think there is any lack of understanding of the characters. We know all that we need to know about each of them barring their names. Did you find the lack of names confusing, or were you able to follow the novel without them? This isn't a right or wrong question, it has to do with your understanding or lack thereof in regards to the text and flow of the story.