Finished the demo, and overall liked it.
EduardoEdward and Jonny are likeable characters, initially, judging by their portaits, I though Jonny was the "serious" one as opposed to Edward, but perahps is the other way around; and Nad, for the little I could see, seems an amusing volitive person.
I can't really judge the story though, as of now because there's really to little.
Graphics were overall good, expecially the menus.
On the gameplay side, the enemies provided an adequate challenge for a early level, but were a little too slow, even without casting haste. I rarely needed to heal, but most of the times at the end of the battle the party HP was below 25%, I think it's ok for a early-game, nobody needs to heal too often at the beginning. I loved the healing after every battle, you need a good 75% of your HP/Ammo/Charge in each fight.
What I disliked though was the ATB, looking at that little bar, waiting for it to fill up is annoying.
There's some small mistake here and there, text being cut off the window, wrong name in the victory aftermath, a soldier walking in the wall; things that can be easily fixed.
I really hope you fix the lag though, half tile movement+huge FPS drop made the game feel very slow.