The thoughts of a Level 30-ish BLU:
-For a job that is suppose to be in-and-of-itself solo-content, it's kind of weird that you have to unlock abilities via dungeons and trials, things that are suppose to be done with a party.
-I don't know if there is much of a rotation for higher level content but at lower levels, you just do your buffs and debuffs, put things to sleep, and spam one or two damaging spells.
-At first, killing higher level things by putting them to sleep then killing them with one or two buttons feels cool but after a while, it's just spammy.
-The rewards from the Carnival don't look that enticing to me to level the job up and do it regularly.
-BLU looks dapper as hell though... >w>