Apparently, it was a real snotfest:
DCJoeDog: When they showed Yuuki's life from birth to death I literally broke down and started bawling.
Polaryzed: I wanted to see the last ep so bad that I watched it a lunch at work. BIG mistake. Really hard to explain the sniffles and wet eyes to people.
Ken: I get misty-eyed over emotional things sometimes, but never shed real tears for something... until this show. =\
Sebastian: I don't believe i have cried this much since... well... ever.
And it just goes like that, every comment. Wow.
UPDATE: Neko: "I cried a lot during these last three episodes."