I saw this anime on hulu after finishing Red Garden since I was pretty much looking for any half decent anime with the lack of decent selections remaining after all the anime I have watched to date and carbon copies coming out now days... To be honest I was expecting it to be mildy interesting but that would be it. That most definitely was not what happened.
This anime turned out to be, in simple terms, amazing. While it probably wont be most peoples absolute favorite it will probably be up there near the top for many people, at least it is for me. The emotions and characters really make this anime what it should be, Kurau's and Christmas' relationship are especially enjoyable/entertaining. Did I mention I dig the ending theme song? Each episode definitely leaves you wanting to see what happens next.
Even if you don't become immediately fascinated from the first episode I strongly suggest trying a few more. It will almost certainly be worth it.