I'm in the middle of playing the demo now, It's pretty good so far, and I probally will end up buying the full version.
However with that said its not without its problems. there's the battle hud thing I mentioned earlier. Then there is no indication whatso ever, that a char leveled=wtf(you have to keep checking the menu, just to find out if you leveled or not). Even if it doesn't display the stat increases/new/skills in a special window when you lv, fine, but why is there no simple popup or whatnot, saying lv up, so atleast the player knows they gained a lv?
The last noteworthy problem I found, was why can't you run from Crystal Eaters? They push you back anyway, so It's not like you can cheat the system, all that not allowing running does, is force the player to reset the game from their last save. Not only is it annoying, but because it breaks momentum so much by effectively ending the game, if you are not yet strong enough to beat it, it will more then likely make the player want to stop playing for awhile.