Japanese speakers: how does this AI voice cloning sound in Japanese?

Hi everyone!
I’ve been developing an AI voice cloning website for the past few months. While my native language is English, I’ve spent a lot of time tuning the Japanese voice quality, including pronunciation, intonation, and overall naturalness — but I’m not a Japanese speaker myself, so I’d really value native feedback.

From my own testing, Japanese output sounds quite natural and clear, but I want to hear from native speakers:

• Does the pronunciation sound correct?
• Does it feel natural for longer sentences?
• Any accent or intonation issues?

You can try it here: https://kikivoice.ai/
(No login required)

If you’re learning Japanese or are a native speaker, your feedback would really help improve Japanese voice quality even further. Thanks in advance!🙏