Well, it has a solid story, quite frankly. You just might have to level up if you have trouble with a boss or a new area, you don't have to be a leveling fiend to complete the game, expect to be at late 30s or early 40s by the final boss. 50+ to do the optional super boss(es).

It just requires somewhat more leveling than modern RPGs where you don't really need to level that much at all. And you don't get so much money, I find that more tedious than exp. You absolutely will not get enough money to buy the best equipment from a new shop the first time you get there, most money is from battles throughout dungeons and exploring on the next objective. Though it'll take a little work to get exp and gold, there are of course tricks to get alot of gold and exp, like in most RPGs. And really, power leveling is only for preparing for the super-hard optional bosses, it's just nice for the normal game.