Maybe I’m just a killjoy, but the Kylo one doesn’t sound any better to my ear than someone doing a barely passable Adam Driver impression. To the point where I actually thought it was whoever had made the video introducing it first, until I realised it sounded “off” in the way that AI voices can’t quite get the inflections of sentences right.
I would say that it does actually sound just like Adam Driver, just happens that the inflection makes it clear it’s AI. That said, there’s a difference between what Adam Driver sounds like and what Kylo Ren sounds like.
But since we never hear Ben Solo say a single line, we can always look past that 😉