The only thing I don't really like about the game is that they basically removed all the flexibility from the armory system, when the original idea was more like "make your own class" sort of thing. I get that in online games people tend to just go for min/maxing so hybrids suck anyway, but now it's completely laughable to even try. Compared to XI you had things like where DEX would improve your accuracy, critical hit rate and a variety of weapon skills and abilities, here it's just DEX for ranged jobs only, full stop (I guess it's more fair to compare AGI in XI, which increased ranged accuracy/critical hit, evasion, enemy TP gain and certain weapon skills).
Also as I understand it, Gathering and Crafting classes are no longer useful at all. Basically the only unique function crafting provides is socketing the best materia which is something you can pay someone else to do. Gathering is for nothing but making money. Was expecting that you'd get better armor if you went through the trouble of gathering and crafting it yourself, now armor just rains from dungeons and quests.