It was cute, and I liked the main character (as a character), especially once past the intro. It captured her POV very well, reminding me of Ramona Quimby. Then again, I often used to feel Ramona Quimby captured the POV a little *too* well, and you could feel her frustration! Same here, but I took it in stride. I didn't personally care for the girly pastels, but they were very fitting, and the sprites were cute.
I was very happy to be wrong. ^_^ It worked well to have that ending automatically after going through the other endings. It felt like a good payoff -- although I admit I peaked at the walkthrough after getting 4 of the endings, having gone through all the choices at least once, and wondering which combinations would actually trigger endings I hadn't gotten. It was tricky in that regard.
Anyway, I liked the true ending, and it finally answered the question I would've asked Arashi two seconds after he broke up with me -- Why. It was a good reason and the overall message is good. I'm glad they didn't start dating again at the end. I did think Arashi's character was a bit over-the-top in terms of perfection. Not his good looks or anything, but he is so extremely nice. So nice, that the fact that he didn't tell her why earlier or break up with her earlier feels "out of character" rather than a flaw. In the true end, we find out why he broke up with her (awww), but the conversation that ensues is full of incredibly selfless thoughts on his end. I have mixed feelings about this -- because there IS that parody element where the shoujo manga prince is only a hair less altruistic than this guy is. So, it is fitting that it is over-the-top. The only problem was that it made it difficult to reconcile (a) why he didn't break up with her earlier, and (b) what exactly are all these "flaws" he claims he has? He doesn't give us any examples (not even the example of not trying to talk to her about this earlier), and we don't see any in the story. And, as over-the-top as it is, it may have been played a little too straight; it was at its core a serious conversation with a serious message, so it seems that Arashi should be taken seriously... and yet he can't be, not quite. That's why I have mixed feelings about it.