Estate planning lawyer and mom to two boys. My older son liked audiobooks as an infant, and I've listened to a lot since then.
My 11 year old loved the humor and fast pace of this book. Johnny Heller's narration was his usual outstanding work; he's well-suited to funny books.
As the parent, I found this an enjoyable listen, but not as compelling as some -- certainly not one I would have finished on my own.
I would not recommend this for a particularly young and sensitive or squeamish child. Although there was nothing problematic for us, my son delighted in telling people that Goldilocks was impaled on a church steeple, or some such. In another episode, parents sacrifice their children. One of the recurring themes was how adults -- and especially parents -- are useless at best, and are usually harmful to their children. Although this is a common theme in children's literature (are there any children's books with good and present parents?) the direct and repeated statement of this proposition would make me shy away from it for a little one, especially coupled with the occasional gore.
When my sons and I listen to audiobooks, I usually enjoy them as much as the kids. This wasn't one of those times. That said, my 11 year old son finished the book in just a few sittings, on an airplane. He said this wasn't his favorite and wasn't interested in listening to the sequels, but clearly it held his interest while he was listening. His biggest complaint was that the focus of the story was on dating and relationships, and he assumed from the title it would be mostly tied in to Star Wars.
This is a popular series so I assume our experience is an anomaly, but wanted to share our thoughts in case you have a kid who doesn't like relationship drama, or like me want to find books you both enjoy.