Loved it when I was reading through all the Hogwarts Library tie-in books many years ago. It was a very nice addition to the seventh book and expands upon the established lore adding to it and bin snarky and humourous about it. 
The audiobook was next level! Loved to see the cast members narrate each tale and commentary. The added sound effects were very well done, but in a couple cases, it felt a little too much. But, still very good. Definitely recommend the audiobook version.