I was building out something along these lines and the voice was just rubbish (I mean, sounded fine for one short episode but won't on the 20th episode) at the time, so postponed to focus on more near-term goals. But the variation in voices here is quite a bit better, and will improve. You know this is going to be a thing.

There are still some extremely challenging/interesting problems to make it not terrible. This is where we get to invent the future.