You can tell Audible out a lot of work into producing this audiobook. There is a full cast of actors playing different voices, fully acting out their parts complete with sound effects.
All of this is really great, however, when adapting the graphic novel they did not adapt the action in the panels. So this was very much like listening to a television show. There were a ton of times where action was happening but the listener has absolutely no idea what is going on or what just happened (unless, if course, they are following along in the books or have read them before). I could follow along with the story for the most part but there were big gaps in my understanding. The people adapting the comic should have turned the action panels into exposition. Especially in this case as the authors were involved in the production.
I can't complain too much, I suppose, as I got a decent amount of entertainment from this free audiobook. Thankfully my library has these in e-comic form so I'll eventually go through them. If you're going to listen to this I'd suggest you check to see if you can get your hands on the books to read along.
I liked the story itself well enough though the resolution of one element at the end didn't make sense to me. I didn't mind that it happened—I expected it to—I just wasn't down with the way it happened. And I really disliked some of the deaths. Speaking of which,(show spoiler)
P.S. If you want to try it out, it is still free and will be until November 4th. Can't beat that price, at least.