I think they were better off with the credit system. With this "so called" *unlimited model, after consuming just a couple of audiobooks you are left with a very paltry selection of content of either librovox style recordings or other types of uninteresting titles until the renewal of your next billing cycle. I can understand the need for a business to turn a profit, but you need to be clear on how many books from certain publishers you can access before you are cut off from the good content. Now choosing an audiobook from Scribd is kind of like walking on eggshells because I have to be careful which books may or may not set off the algorithm that will limit your selections. It's my understanding that they refuse to be clear on this. They pretty much just come back with canned responses to anybody who contacts them to complain.
I have come to find that my local library has a great wealth of content that is ready available which can tide me over until I can access the best selling titles on the wait list. If on a rare occasion there is something that I have an absolute urge to read now, I can always just purchase it on Google play. I think that may be more cost effective than paying $9 a month for a service that doesn't really deliver what it claims to.
I would come back to Scribd if they would either
A) Make the service TRULY unlimited (even if I had to pay a little more) or
B) Clarify which content and the quantity of that content that can be consumed in a month, so that one can plan accordingly.
I don't get how this works, it's too confusing and seemingly arbitrary.