If you consider for example "worm girl Sakura," this is one of the most disgusting things I've seen! It's basically the notion of a character who is kind of turned into the perfect weapon by virtue of being kind of permeated with like killer worms or something, or so.
Pretty much everything in F/Z is about people just going into conflict and fighting and then fighting and then they fight and duel and it just never added anything that the original FSN anime didn't already have.
Saber and Lancer were pretty fun to follow, basically they have a kind of rivalry where each is determined to best the other in battle. They don't really get too involved in the overall anime.
But then instead we get Waver and Rider, who are sort of cool I guess but they were the focus of the entire show after awhile, I didn't get to see more about the other masters and servants. Assassin basically I honestly didn't even know was in the show hardly, which I guess is part of the theme, but mostly it becomes almost entirely about just going on a random bit about so and so before bringing it back to some dueling.
The original Fate series had more variety and stuff it seems to and also blended the Holy Grail Wars with dating, romance, and that to quest, whereas Fate/Zero decided to pin everything around the mythos of the Grail, the wars, the conflicts, the "nature of heroism," and kind of turn it into a Philosophy class which is I guess fine in a sense, but even Aristotle probably would not have minded a bit more give and take, ebb and flow, yin and yang to the proceedings (which FSN anime did provide)
So yeah, it was very colorful and flashy and had some cool music so it wasn't un-fun per se but a 5 was about right.
