Monogatari-style plot, Fate functionality, and Final Fantasy-type Final Boss. Kind of a chore to watch.
Better, richer, dialogue than in UBW, much more of a Fantasy feel than previous Fate installments, but a solid piece with some outstanding artistic, bone-chilling, and emotional moments.
If you haven't played the game you likely will not enjoy this. I didn't. Even after having played the game it's still pretty empty.
Different vibe from Fate/Zero, but still good and critical to the entire Fate Franchise. A little less ensemble, a little more shonen.