While graphically pleasing (for the early SNES days anyway) and fleshing out the class system that would become very famous later on, there's actually a lot wrong with this game.
Taking place in a variety of worlds that only had a few quests each meant that huge areas were pointless, and it's easy to get lost without figuring out just where you are supposed to go. The game also gets fairly repetitive after a few hours, and it's worth mentioning that in the North American version your main character's name is, oddly, “Butz.”
Nobody in North America played it (legitimately anyway) for a long time due to the lack of an official release until much later on, so FF5 really missed its window to shine. Of course, everybody in the know had downloaded an English translation ROM way before Squaresoft figured out people actually wanted to play this game and gave it a proper stateside release.