I watched Fate/Stay Night's initial animation back in 2007. (So, a little bit after it was done)
After that, I immediately knew it was THE best series I had seen so far. Even though the animation quality wasn't that good, back then, I only really cared about the story.
And at any rate, with UBW's new animation from 2015, I'm yet again convinced I didn't do the wrong choice, like I was when Fate/Zero got its anime.