I cried.
The ending wasn't totally what I expected (or, in some aspects, what I really wanted) but it was beautiful regardless. I cried because it's the end - no more waiting for chapters, no more fun theories (that we'll be able to canonly confirm or trash, at least), and no more goofy interactions between the characters I've grown to love (outside of fanfiction).
I am not an EdWin fan, but the last few pages... What Edward did was just so... Edward. Arakawa's a genius.
And Ling! I've always said that, as long as Ling, Edward, and Riza survive, I'll be happy (and I am), but Emperor Ling looks so... SERIOUS. I'll miss my fun-loving, happy-go-lucky, silly Ling...
I've followed this series since 2001... It's hard to see it go, but at the same time, I couldn't have asked for a better story to follow, and that makes me happy.