Just done with the game. So far, I'd definitely say that with Xenosaga, it's (so far from what I've played) the console RPG of the generation. While some aspects aren't too gleaming, the more I found faults while playing, the more I got even more addicted to it.
Yeah Tidus sucks, but Square-Enix should've simply picked up a better voice actor with a thougher character. The way that wimp delivered his lines was too cliched, we've heard that fruity voice in a thousand other games and animes, and it just made the game lose a lot of credibility. For the rest, I don't think that the game is _that_ corny. I mean, previous Final Fantasy games were just as corny, only they didn't have any voice acting, and their cutscenes and characters, and 2D/3D animations weren't as detailed, so it was just slightly harder to notice.
But apart from what we've got a pretty good story. I even found the lack of a world map to be refreshing, as it felt more like an enthralling adventure. The combat system is excellent, much improved from older FF combat systems and really dynamic and deep. The sphere grid leveling system is nice too. Blitzball is a pretty cool minigame, although personally I didn't really use it, but still it's totally optional. It's dealing better with espers than any other title in the franchise.
It still stands as one of the very best looking PlayStation 2 games even today.
Clearly, I don't understand what that game is lacking that other Final Fantasy titles had. Maybe the transition from 2D, 2D pre-rendered backgrounds coupled with 3D characters, all the way to full 3D and voice acting wasn't as perfect as we'd hope it'd be, but this is still a game that's very well worth playing.