This book is so original, delightful, and ageless that I find myself able to love it at different stages of my life - as a child, a teenager, and now as an adult. The fantastic storytelling, perennial wisdom, and worldbuilding are all wonderfully evocative. L'Engle is truly a treasure.
I listened to the audiobook version, which had an added bonus. It included a brief intro from L'Engle herself and an afterword from her granddaughter. Just for those features alone, I highly recommend it (even though the narration was just OK).
It's interesting to learn about the challenges this book has faced over the years. Many publishers didn't know what to do with it, and it has been contested for various reasons. Some thought it was too close to the fantastic, while others felt it made too many references to Christianity. However, regardless of these aspects, it remains a wonderful story that I wholeheartedly recommend.