Now I'm not exactly a Yuri scholar but I've read a lot of it here and well, most Yuri is pretty generic: All-girls school, lonely MC than is smitted but a mysterious/genki classmate, drama, more drama, they finally get together and the series ends.
Citrus at least seems to be a long series and the character dynamics are interesting, the characters themselves are well defined and mainly are fun (when they're not angsting of course)