I just finished this game today, and I can safely say, it is 100% one of the best visual novels I have ever read. I absolutely loved it. The characters were solid, the music was solid, the story was solid. I highly recommend it to those looking for a good visual novel if you have the time for it.
My only complaints are three things:
One: The Main Character; Fukami Suguha. He is going to a pain to listen to for most of it. He whinny, somewhat selfish, and cries a lot. And most of all, he adds nothing relevant to the plot until nearly halfway through the game. He gets better afterwards, but you just have to bear with him until then, though not too much if you like the other main cast (which I'm certain you will).
Two: The ending is a bit weird. Though the story is really well-done from start to finish, the ending isn't as satisfying as you might expect. That is all I will say about it. It is not too big of an issue for me mostly because, again, the characters and story was so good, but it might make you question a thing or two.
And three, and my biggest issue of all: The translation. My god; the translation. It is well-written and the translation is overall done well, but the times I have noticed the misuse of periods and questions marks, to characters referring to themselves in the third-person, TO ALL THE TIMES THE FEMALES WERE CALLED "MR" AND THE MALES HAD BEEN REFERRED TO AS "SHE"! Good god, I cannot BEGIN to tell you how annoy it was!
Overall, if you have the time to sit through the entire game, all five chapters, you will not regret it. 4/5, 97%, four-and-a-half stars out of five. I wanted to make it 5/5 so bad.