Indeed I have. Though it was the somewhat altered psp version which led me to buy the previous two games also.
It really was one of the best and most indepth rpgs I've ever played. The story, the enemy designs and the characters were all perfect, and the adult humour and modernity was very refreshing in a genre usually clouded with self righteous knights!
The whole socialisation equals magic/ summon mastery was pretty unique too.
Also: Mitsuru.<3