This is with 1 minute of audio and 10 minutes of training, which is crazy to me. Maybe it's not "as good", but it's very good, and free, and it will get better, faster, and cheaper quickly?
Partially off-topic, but one of the things I find as a native English-speaking American is that British female accents (probably more specifically accents that are close to a "BBC accent") sound better to me. That's definitely true with Polly. I don't know if it's because flaws aren't quite as obvious to me or just that I like the accent better in general so I'm more willing to overlook them.
