The story Denene Millner created, The Fresh Princess, is a solid one about moving, new places, making friends and being brave. However, while this story has been done before, it is a little 
different this time. You still get the “upset about moving” and the “jitters” trying to make new friends’ aspects, but it just has a slightly different feel.
This could be since this family is black. However, this is not an “issue” (nobody comments on that), they just are a new family in town. The normalcy of this is very refreshing. The other part that could make it seem different is that it is set in a city (the subway anyone?) and one of the actives our young heroine does is Double Dutch jump roping. This is perhaps something our more tech savvy child is less than familiar with.
The fact you also get to see a city will be accessible to kids who live in the city. Yet, there are familiar images that country kids will get, too. This introduction for some and the seeing themselves portrayed in a natural, just is, manner also is refreshing.
You do have to keep an eye on the illustrations of Gladys Jose, as they will give you some details not in the story but are delightful extras (spoiler/example: one of the daughters has a poster of Malcolm X in her room and not what you would expect such as Dr. King, Maya Angelou or a pop star). This could be a discussion piece for older readers).
And while I do not see this book becoming necessarily a traditional classic, it will be one that will get attention and press.