While this game won't blow you away, but you'll be entertained for your money. Your characters will advance up jobs, you'll fight monsters, you'll summon suits of power armor, and you'll fight bosses. You start off as nobodies and end up saving the world. In between, they hit all the beats, even giving you your own airship.
Once you're done, there's a new dungeon, some super-hard bosses, rare weapons, and the like. If you choose to play again, you'll start at your current level with all your gear.
The combat system is straight forward. You have an AUTO mode for the fights, which isn't brilliant but will serve you most of the game. If you've played enough JPRGs, you'll recognize all the mechanics.