I was an Audible customer but I decided to move to Audiobooks Now because they have a better customer service, easy and simple app that connects automatically in my car sound system and the unexpected: cheaper audiobooks! You definitely should give it a try ;) If I need to complain about anything, it would be about the design of the app, I wish it was more modern.
MairaBell36 about Audiobooks Now Audio Books, v3.8