So, if you watched the original fate stay night first, immediately you start comparing both anime.
Overall the anime is like a remaster of the first one, some things went better, other were not necessary to change, at the beginning i felt i was just recapping Fate Stay Night,
but the events changed considerably and it became interesting. Story is not so captivating but it is good.
Graphic quality is good as expected.
For those who already watched there go my considerations with some spoilers:
While Unlimited Blade Works makes the romance storyline around Shirou and Rin with Archer as the badass servant, the original Fate
Stay shows romance between
Shirou and Saber with Saber being the best servant.
Not so naive as he was previously, so he acted way better.
He betrayed Saber, unacceptable...Also if he waited a little more, Archer could get into the fight.
So Rider died quickly and didn't have a chance of using her Hougu like the first series or even a proper fight against a servant, such a shame.
Fights animations were better and the action started early on which is cool.