Am I disappointed? I can't really say.
I just finished watching KKM (which is Kyo Kara Maou). I finally got to see the last episode of the anime (I know there are many, many books). I like the show, don't get me wrong, but...somewhere along the way during the box-arc, things began to get a little dull. First of all, the art became less appealing and reminded me much of Sailor Moon in how you'd have "good art days" and "bad art days". During the bad art days, you just wanted to kill the artist because man, you couldn't see how anyone would like these girls because they were supposed to be pretty and they kinda weren't.
By the end of the show, and having watched a little of the beginning of it again recently, I can see that the art changed throughout, but it wasn't like Sailor Moon where you'd get episode by episode of different art. No, through a gradual change, it was. I prefer the art at the beginning. Then there had the middle art, of very round eyes and soft, girly features for Yuri. Then the last seemed to be an amalgamation of the two, which looked not very good and more like a "bad art day" for whoever did the climax.
Speaking of climax, it was kinda anticlimactic, to tell you the truth. I question why Shori, Yuri's brother, was there in the first place, since he didn't seem to do a helluva lot. A while ago, I read a fic which gave hints that Shori had ended up in a coma, but I guess that referred to something else, since Shori was just fine and dandy and useless as he came. I don't understand why he was there at all. He didn't do much protecting and that whole arc of him getting control of his power, he didn't do a helluva lot with it. Seriously. WHY was he there? ><
It also seemed to me that it was terribly easy to defeat Soushu. Hell, you didn't even see a battle! You just saw Yuri waving around with Morgif (which reverted from 'coolness' mode, naturally when Yuri was gone) and that's it. Given that, it didn't seem very hard. I mean, in the history, there was this huge showdown, but while Soushu was supposed to be as powerful as he was before, Yuri didn't even break a sweat. Not to mention, when it was over, everybody was catching flies in their open mouths. I want to see an expression of genuine shock that DOESN'T involve a mouth wide open ><
However, given all this, one of my favorite characters will always be Murata. XD I love his expression and slightly apologetic voice when he tells Yuri he wasn't sure if it would work, being thrown in the pond. Not to mention the expressions on Ulrike, Conrad, Wolfram, Gunter, and Gwendel's faces when Yuri and Murata showed up was just priceless XD
All in all, despite my disappointment (and it had some great music in the beginning of the last episode during the confrontation), I still really love the show.