A coworker lent me these books (the first trilogy) in the middle of February which feels like a lifetime ago.
I really like the format. The book size and shape is satisfying to hold and the letters are fun (I was reminded of the Jolly Postman books that I used to read as a kid).
I would recommend either reading just this one or making sure you have access to the entire trilogy when reading. My coworker initially couldn't find the third book, and it was torture not having it to read as soon as I finished the second book.