This is the book of the play, so it's a little hard to read as opposed to actually seeing it on the stage. However, it's still a good book.
It follows Harry, Ron and Hermione's children as they're growing up, going to Hogwarts and finding themselves in all sorts of trouble just as their parents did when they went to the famous school of Witchcraft and Wizardry. It's interesting to see how they have all developed as they've grown older as well as seeing how Albus (Harry's son, named after two famous Headmasters, Dumbledore and Snape) copes with being the first Potter to be put into Slytherin and how his friendship with Draco's son develops.
The story is good, the stage directions can be skipped over as they don't really do much unless you're seeing it on stage, but it kind of would have been nice to have it as an actual book instead of just the book of the play which is why I've only given it 4 stars.
But hey, who knows, maybe we will get it one day!