All in all I enjoyed it, but I can't say I liked it because you can't like things that frightens you. Yes, it frightens me, regardless of the fact that I already knew the ending (I read spoilers just to make sure the anime I watch is good).
I can't say I disliked it either.
I chose to watch this because of the art, it suits my taste. The plot is really good and it has a twisted ending. I found myself emphatising for the characters especially for Katsura. 12 episodes are few but the characters are potrayed very well. And I love the songs they played on the last few episodes.
I don't think I can recommend this to anyone though. It's really tragic.
