My sister is playing it and every few days messages me telling me how great it is. (She had to get over that it wasn't a direct FFTactics clone and its own thing but once she did she is LOVING it)
It is a really good game. Very distinct characters, with very distinct pros/cons on the battle field. The decisions have massive impact on how the story plays out. Difficulty was spot on as well. Not too hard but far from easy, it was just right.