This is not a sequal to Tales of Symphonia, but its from the same creators and is just as good. I think the story line is better, but some disagree. The fighting moves are not as good but the spells are better. The over all combat is the same, the monsters to me make this game better, i dont know what it is but the looks seems more fun to fight. The Exp and levels are harder cause the max is 200 instead of 99.
So if you like Tales of Symphonia you will like this game. Big plus to achievments.