User blog comment:Tsumou/Creating VOCALOID Music. Who is best to use?/@comment-24490922-20140813235055

Although I myself am not a VOCALOID user, I would not recommend Tianyi as I already know her pronunciation sucks and she is only available in China. So unless you really want her and are willing to put in quite a bit of money for her, I would not say she's the best vocal. Ditto for YANHE (only her pronunciation is better)