My only complains are about the songs and the background effects, which were quite disturbing me several times, especially the effects. As a shoujo-manga reader, I absolutely noticed that lots of manga, especially shoujo, have always put an effect like a bubble etc, and I've never really paid attention for that, since it's for an ornament for having a good yet making the background to be a bit 'crowded', but it's quite annoying if they put this into anime too, since anime was colourful, meanwhile manga wasn't.
Overall, this was good, and it made me amused as the main character, that 'Sunako' made me laugh several times because of her stupidity, and I love how they portrait the characters and the relationship between each others. But the most important thing is, this anime kinda reminded me of my life during high school, since it's one of the most precious memories that I've ever had.
