Story
The mystery played out well over the whole series, with a generally satisying conclusion, and there was a good combination of horror, humour, and romance. Plus we're left with the potential for a second series, which I would definitely watch.
Animation
Great animation, I like that they played around with different styles and effects to really add to the otherworldly atmosphere.
Characters
Okonogi & Kirie were both interesting and likeable side characters. Teiichi was kind of bland, but he had his moments. For me Yuuko was definitely the stand-out character, which has a lot to do with Hara Yumi's superb voice acting. Yuuko is really the focal point of the series in terms of plot, and thankfully she is also a complex and interesting character who can be hard to pin down, displaying a range of emotions. (Also, if there is a second season - more Yuuko fanservice please? XD)
Overall I'd give the series a 7/10. I really enjoyed watching it, although I probably wouldn't re-watch as a lot of the appeal comes from he gradual revelations about Yuuko's past. However, Yuuko is definitely a character that will stick with me for a while ^.~
