I adore Audible. I have over 600 titles to prove it! I've been a member since 2010.
They have a new feature now that is awesome. They offer a lot of different books and podcasts free with a monthly subscription.
I used to get 2 credits a month but since this new feature I dropped it to one. I still get audiobooks from the library- Libby and Hoopla but Audible has everything imaginable.
I can't think any any cons with Audible. Their customer service is excellent and you can return any book you don't like. I've used that option quite a bit over the years, although I rarely need to.
One credit per month with tax is around $15 or 16.00 and 2 is a bit less. My habits tend to be- books I know I'll want to listen to more than once I get on Audible, while others either Libby or Hoopla. I'm one of those people who loves to "revisit" books.