The stories are very condensed, and some of the stories do skip past some important details, for example it skips over Noah building the ark, and tells a simple story of a typical day on the ark as it is floating on the flood waters. While some people won't like that it skips the initial command to build the ark and the loading of the animals, I thought it was a nice change, and as my daughter already knows the story of the building of the ark, it was actually a nice addition for her to think about how life might have been living on a boat with all the animals. If you are supplementing and reading with your child, I don't think these oversights make a huge difference.
The book is appropriate for children aged 3 and up. The audio accompaniment allows for even young children who aren't reading yet to follow along and enjoy the story along with vivid illustrations to help them connect with the story.
I would give this book. 5/5. Great retelling of Biblical stories and completely appropriate for young kids!