When I first watched Magical Mystery Cure, its ending almost reminded me of the ending of Mass Effect 3: Went by too fast, and created more questions than actual answers. BioWare, the creators of the Mass Effect trilogy, had to address the fans' issues by creating an Extended Cut ending to Mass Effect 3, which didn't change the ending but rather provided greater clarity to the original ending. Likewise, this book might be considered the Extended Cut to My Little Pony's Season Three finale, as it provides more clarity to Twilight's new life as an alicorn princess, while telling a great story that kids and bronies alike will enjoy.
My favorite thing about the story was how Twilight actually chose to stay behind in Ponyville to be close to her friends. And, even as an alicorn princess, she is not all powerful, not just because head-writer of the show Meghan McCarthy confirmed that Twilight will not outlive her friends, but also that in the story, Twilight learned that she still had to depend on her friends like she always does, only this time on political decisions. We're also given an origin story to Princess Cadence and how she became an alicorn princess herself, as well as two brony-favorites making cameo appearances in the story, Gilda the Griffon and Trixie.
The book is around one-hundred thirty pages, which can be very brief. However, it'll be worth the brevity due to its story of Twilight adjusting to her new role as leader. I'd recommend this to any child who loves MLP, as well as bronies who await Season Four of the show. Overall, this was the Extended Cut the show needed after the Season Three finale, providing clarity to Twilight's new life while telling a great story with a satisfying moral.