i was on lvl 60 in the last battle and i found it more challangeing then most other final battles in other final fantasys. also my 3 main characters had well over 1200 lp still which kinda kept me from haveing any augments. i coudl easily get them but for some reason never got them. plus my gambits were ally any = phoenix down and foe any= any. also i didnt use any mist on the any of the final battles. and my weak armor and weapons didnt help any.
as for the ending i thought it was great. i was a little dissapointed i never got to fight zargabath the judge. but the ending made up for it. it showed the torch being passed sort to speak from balthier to vaan. a very nice touch i must say.