The speech generated is the best I've heard from an open source model. The one test I made didn't make an exact clone either but this is still early days. There

The speech generated is the best I've heard from an open source model. The one test I made didn't make an exact clone either but this is still early days. There's likely something not quite right. The cloned voice does speak without any artifacts or other weirdness that most TTS systems suffer from.