First in on a Necro !!
It has its uses, but they are limited...
Bottomline is: 1)
Its hard to tank if you dont do enough DMG to maintain hate
(at low levels)
2) Its hard to be a damage dealer.... if you dont do much
Effectiveness is determined in this game by a combination of Mathematical equations, with some exceptions, its generally better to use your jobs highest rated weapon.
You will miss less, do more damage when you do hit, & gain access to better weapon skills...sooner.
If you are a Warrior do yourself (& the people you party with) a favor & use Greataxe.
I'm assuming you are new, so I wont go into the whole mind boggling array of possible situations & special considerations you will encounter in later stages of your career. Rest assured you wont be bored with warrior if you trully try to excel.
For the most part people wont make suggestions that HURT your performance.
Have Fun !!
BASTOK:10 SKY: O SEA: O DYNAMIS: O