Quick review after 20+ hours...
Story: 7
-The story isn't too interesting, but it's kinda good sometimes, nothing important
Characters: 7
-Same thing goes for the characters so far, they aren't up to par of something like Final Fantasy VI
Graphics - 8
-This game was originally being made to go on Gameboy Advance, then they switched to Nintendo DS I hear. Maybe I'm incorrect but I'm not excited about most of the graphics, some are good though.
Music - 8
-The music has some good stuff, but nothing super special.
Controls - 9
-There's a problem with the battle camera, you can't rotate it or tilt it or zoom in. Also, without a zoom in feature, that means you don't use the stylus at all since it's difficult to select stuff.
Battle System - 9
-Great stuff but there's a problem compared to Final Fantasy Tactics: The War of the Lions. The battles take a long time to beat. This is because your characters don't do enough damage and also can't move many spaces in a move. That's what I've experienced so far.
Side Quests - 10
-There's a lot of stuff you can do, nothing extremely ultimate like Final Fantasy XII or The Elder Scrolls IV: Oblivion, but the proper amount of side quests for this type of game I think.
Overall: On track for a 8/10 score. I think the game has some great stuff but often seems to have flaws and it's super special to me. I felt the same about Final Fantasy VII: Crisis Core earlier this year.
8/10 is a great score, but people's scores will range from 5/10 to 8/10. I recommend you rent this game, then decide. I hear it's an improvement over Final Fantasy Tactics Advance(which I haven't played). I liked Final Fantasy XII: Revenant Wings(9.5/10) and Final Fantasy Tactics: The War of the Lions(10/10) more.
Roto13, what's your comment on this quick preliminary review??!