The voice direction in English is really bad in this expansion but the japanese voice acting is one of the best XIV ever had.
Funny that a certain youtube idiot (ProJared) said everyone who thought that way didn't know what good voice acting was and "only liked hearing cute noises we don't understand". And I know other English speakers who think that way too.
Imagine thinking you need to understand the exact words of a language to distinguish emotions and intonation. That's such a typical "ENGLISH! DUB ONLY!" american mentality.
Good voice acting has little to do with the words you say and a lot more with how you make characters sound for appropriate moments.