How useful is Dawn Warrior's Final Attack skill?

[Orit]

Should it be maxed (at the expense of Sword Booster)?

[Sn1perJohnE]

Max it. If you dont add points to Rage now, and max booster, or vice versa, you can use points after maxing either Panic or Coma to max what was unmaxed in 2nd job.

As for FA's usefulness, I believe it was shown that at max it gives a a boost to the DPS, as the FA hit is nearly instant when using brandish. I would say it is essential to have to become comparable to higher leveled Heroes, as its almost like a 3rd hit with brandish.

Also, its either max or leave it, as anything lower than max will lower your DPS, but it is an on/off skill, so yea.