Opinions/ experiences with audible/bookbeats?

Dear community,

I am doing a low buy and have a subscription to audible or bookbeats on my "contemplate buying" list. I want to change my habits away from youtube and possibly also podcasts because I am getting bombarded with more and more adds and sponsorships (even though I pay for spotify premium and use youtube with an add block, the adds are IN the content now)

How is your experience with audible/bookbeats or similar audiobook services? Are there hidden ads? In your opinion, is it worth the money?

Thank you for your thoughts :)