I only played Symphonia, also. I thought the story was kind of repetitive after a while. I mean, how many times can Collette fall into the hands of the bad guys??

It's not bad, though, just kind of weak at a few parts.
The battles were lots of fun. I was going to try the next one that came out on PS2 (Legendia? something like that). I heard the battles were a lot different in it, so I passed on it for now.
You know, now that I think about it, I believe I have a demo disk that had a level from one of the Tales of Destiny games on it.