Having now tried several other mmo's (WoW, Guildwars 2, swtor, neverwinter and a few freemium games) i cant help but notice one thing they all have in common. Their sound is great. Now dont get me wrong, the music in ffxiv is amazing and the one soundrelated thing i have no problems with. But, and heres a very big but, everything from punching monster to getting gil feels incredibly weak.
UI Sounds
For the UI theres mostly standard beebs bloobs. No real complaint other than the gaining gil sound. In WoW, when i aquired a large amount of gold i could feel it. And it felt good. Very good. Almost addictingly good. While on the other hand in FFXIV when i get a huge amount of gil, be it from aquapolis to retainers, i feel nothing. I only see a number grow. And just seeing a number growing is boring, when i could feel the number growing.
Ability Sounds
This is were my biggest issue with the sound design is. Every single attack i have seen so far have been disappointing. As a monk i dont feel like im punching a dragon to the death. I feel like i am dancing behind it. My strikes have no weight behind them it sounds like, because animation wise, i am killing it with fortythousand fiery fists of fury. That just doesnt translate well when all i can hear is "slap, slap, slap poof". I believe that many newcomers also notice this consciously or unconsciously and move on. Without good sound in combat it just feels really boring.
Monster Sounds
For the various foes and fiends among Eorzea i think they all sound fairly generic. Its all the same screeches and roars. Boring, really.
For the humanoid foes there seem to be a trend going on with making all the voice acted foes have voice acting during combat. That worked really well for me in the vault as it gave the few members of the Heavensward a bit of personality. Were it didnt work for me was in the Praetorium and Aetherochemical Research facility. Gaius and Regula have voice acting during those fights but its way way way too low. I can barely hear it. Important fights could also do with a bit of "grunting" from the foes, to show that they also are getting tired and beaten.
Music
As i mentioned the music is awesome. Only real comment i got is that soken shouldnt use whatever human voice immitator he used in the Ultima weapon theme again. I like actual lyrics.