Nostalgia will peek up your mind...
There's a lot of types of battle systems in RPGs. And there's none better than other. They are just different. Radiata Stories reached the top for it's story, it's drama. Fulfilled with humor (sarcastic and idiot jokes) the game brings you back to the feudalism in a fantastic world with a master soundtrack that will echo into your heart and an amazing AI for almost 200 playable characters and many more NPCs with routine (that means they don't just stand there, stopped, waiting you talk to them. They live their own lives and you must get into it in order to recruit them. Each one with their own story, their own secrets... That's one of the most notable Radiata Stories' particulars). Other one is that you have a choose to make in the game, one that will change all your playthrough. This means you will need at least 2 times to complete the game. But I challenge you to do 100% of the journal in less than 4.
Buy it. That's probably one of the better decisions you will take in your live oO'.