I don't usually leave comments on games I play and stuff...but damn, this game.
Never has any game, series, movie, anything, hit closer to home than this... everything from the music, the writing, the way they form their friendship and the struggles about it being through a computer, the reveal at the end... I was crying so much by the end of this game, between how beautifully tragic it all was, and my own memories and feelings, it really broke me, but in a good way.
Ever since it came out, I've played it quite a few times, and I've made sure to recommend it to all of my online friends, as I know it will hit close to home for them, as well... this is the type of game everyone should play, not only for the nostalgia ride, but because of how beautiful and well done it is.
Easily one of my most loved visual novels ever, truly a masterpiece.