Originally Posted by
myahele
No, don't do that.
Continue on to the story since each dungeon progressively gets harder and give more exp.
Unlock the challenge log, doing some of those challenges are easy and will give you easy exp (you get exp/gil by recommending people)
Basically, the best way to lv up is to do leves (if you have enough allowances) and fates while waiting for dungeon queue.
Now that you're lv 30 go to costa del sol and do the leves/fates there. By mid to high 30's go to coerthas for fates---always people there.
ALways do that while waiting on queue; dungeon exp> fates/leves