Oh wow.. At first I was kind of dissapointed that it was like one story/couple per episode but in the end I had changed my mind. This was beautiful, heart breaking, totally worth watching kind of anime. Only 4 OVAs so it's easy to watch all in one sitting and just keep staring at your wall for the rest of the day.
I would have enjoyed a bit more longer episodes, where the story went and how did they evolve. But hey, I'm always wanting more so I won't hold that against it.
Really nice musics and beautiful animation. Will be the added to my "keep re-watching till the day you die" list.