Story: Annoying vampire girl starts living with her slave, plot comes in later and changes when necessary, changes are pretty smooth.
Animation: Pots falling from the sky all the time. Everything else is nothing too spectacular.
Sound: Opening song will grow on you a little. Outro is better, and has a neat french version. When setting changes drastically the music does too, this is done well.
Characters: Mostly annoying, character development changes them but it takes a long time and they revert slightly.
Overall: I must offer praise to the way it doesn't follow ordinary structure. (Minor Spoilers) The setting changes the feel of the anime drastically. The castle doesn't last long but does a good job of portraying a gothic feel. The house setting makes it seem much more ordinary, like most anime's, girl moves in with guy, they have slight arguments, it's silly but comfortable. Setting changes again to mountains and this setting also changes the characters tremendously, more than expected, and they stick with it, they break common structure and stand by their decision, I respect this, it is what pushes it away from other animes. Not exactly worth watching, but it only gets better once you start (which may not be saying much).