Just finished chapter 2. Here's some thoughts and impressions:
There's less voice than I expected, considering the supposed size of the game (2 gigabits?). The first few dialog boxes were voiced, but I haven't heard voice outside of movies since then.
The game is really pretty in battle, but the sprites on the battlefield look kind of cheap. That doesn't bother me, but it was apparent enough that I noticed it.
The perspective of the battlefield sucks. If you have two units standing north/south of another one, it's kind of tough to target the unit that's further north. You can adjust the camera pitch, and rotate in 90 degree steps, which does help a little.
The touch controls are annoying... you have to tap each menu item twice. To attack, you have to double-tap the sprite on the map, double-tap the 'attack' option, and then TRIPLE-tap the enemy (the third tap is for the confirmation dialog...) I really don't see any reason for that. :\
The music is awesome, and it's definitely classic Sakimoto.
The party-wide AP system works as I expected it to: you can move/act any of your party members, as long as you have enough AP to do so. There's a 'battle' marker on the AP bar that, when passed, won't allow you to attack.
You can open chests and talk to people on the map, sort of like Fire Emblem.
Party members who are on your team can join in the battle from a reasonable distance away, but if they're too far away, their melee attacks will be weaker. I think the game said there are 3 distance levels: 1-3 squares, 4-6 squares, and 7-9 squares. This applies for both enemies and your group. When you initiate an attack, it goes until you win, die, or run away... which is pretty cool, I think.
Battles in general are a bit slow, because the attack animations take a while to play, but it isn't that bad at all. The skills seem pretty cool so far, especially the heal spell: you have to sweep the cursor across your characters to select them for the heal spell. I saw some other interactive stuff in the TV ad, so I'm looking forward to that.
The potency of spells (or at least the heal spell, the only one I've tried) varies depending on how many targets it has, which I found to be pretty interesting.
The UI design in the game is really nice. I especially like the setup screen before each chapter, where you can summon party members, arrange your groups, equip characters, talk to party members, etc.
The actual usability of the nice UI leaves a bit to be desired. From what I can see, it's not possible to see how a piece of equipment affects a unit until you buy it, or see how much a currently-equipped piece of equipment affects the unit. Yikes.
On some battlefields, there are glowing circles that, when examined, allow you to restore your group's AP. The game also said they can restore HP/MP sometimes, but the one I saw didn't allow that.
After completing chapter 2, the map I was on became a 'free' map, wherein I can seemingly grind characters if I choose to do so.
I've only tried battler and white mage so far, but they're pretty standard. The class abilities and items actually quite remind me of Final Fantasy. I'm considering bringing in some of the other classes so I can try them out. Stealer and itemer both look pretty cool.
So far, I really like the game. The negative stuff I mentioned is annoying, but it hasn't bothered me that much (except for the shop/equipment thing... I'm going to hate that, unless I'm overlooking something here).
More impressions as I get further in the game!