Really enjoyed the demo.
The trailer at the end was fantastic and got me truly excited to play the game. I won't have time to get into a meaty rpg and complete it before XV arrives but I will get the game.
I'm not much of an enjoyer of Tamer RPGs (the only exception being Kingdom Hearts 3D) and I liked the demo as well. Capturing monsters is far more comfortable than I thought and the stack battle system feels fresh and new without being gimmicky. My sole complaint is that the standard menu the game presents itself with (the button-shortcut menu) is confusing to me and I hope I can abandon it in the game proper.