If you want something old school, this is for you.
The plot is simple as it was aiming for the old school feel. The battle system seem simple at first, but in that simplicity it could make the game quite hard during earlier hours, especially when you have no access to jobs, being called crowns in this game. Unlike other RPG you can't run away from battle from the get go. You need to earn that ability, so expect to die a lot until you can learn "escape".
Once you can customise your characters and have a full party, that is when the fun begin. If you ask me the bonus contains is not that good. You can skip them if you are pressed for time and need to get on with other games. You will like this game evermore if you like Final Fantasy 1/3, cause this is a mix of those two.