I’ve tried one that works surprisingly well. Each sentence had great pacing, cadence, and correct enunciation- even had tone right when someone was shouting or angry or sad.

I wouldn’t really recommend it, though. While I couldn’t pick any single thing out that was wrong, overall it just didn’t quite flow. It’s like watching someone try to act that is technically doing everything right, but it just isn’t good. It basically didn’t understand the greater context of the story and was saying lines.

It was uncanny valley, but exclusively with voice.