By Phoenix.Kirana 2011-09-04 18:58:24
OAx weapons only "suck" because they provide little bonus over most jobs' normal Double attack or Triple attack rates. They also generally have very low base damage and high delay. For a job with little access to DA or TA, OAx weapons provide a way to greatly increase your TP gain, however they generally do not increase your DPS much over what it could be with a traditional weapon.
edit: as for your question, fendoir is probably a useful axe for your current level, but with the speed at which you could level up, it will quickly lose ground against level 90 alternatives.