I tried the KDP Virtual Voice for a book a while back and the quality wasn’t where I was comfortable selling it. I’ve used ElevenLabs and the quality was almost indistinguishable from hours in a studio. I’m going to attempt to launch one on Audible using Eleven Labs. It’s just more feasible than the time and money required for a studio recording. I would dare say it was 80% or more of the quality I’d have been happy paying 1,000s for.

@Heather Lyn I think you're correct that it is still prohibited. I've seen 2 people say their book got approved using a clone of their voice through ElevenLabs though. So I'm going to attempt it. If they don't accept it yet, I'll wait.