I’ve used “AI” voices to make audio from my German and English language material for my online students. At first I found them impressive but after I while I became more and more frustrated with them because of the small mistakes they were making and simply because they are not real. I don’t use them very much now. In the past some people thought, listening to some of my YouTube videos, that I was an “AI” voice, as I was deleting breaths and speeding up the voiceover. I immediately stopped doing this and returned to a more relaxed style. Not quite the same as your experience but I just wanted to share my thoughts!