It actually just slipped my mind.
I have mixed feelings about the character routes. It probably has something to do with the fact that there were 3 different writers. This is the same problem Little Busters had. Too many writers leads to inconsistencies. Kotori's route served as a good info dump route, and was probably the best one overall. Chihay's route felt like the "shounen" route since it had a lot of action and not so much angst or character development. Shizuru's route felt rather short, but at least she's the best girl. As for Lucia and Ayane, their routes were filled with angst and they got old fast, although the horror style of the beginning of Lucia's route was quite well done. Moon route was probably the best route, which is sad since it was only about 3 hours long. At least it has
this awesome OP. Terra route had its moments, but I felt the way it ended kind of just brushed aside the central problem/crisis with a "it'll probably work out in the future". I also don't understand why Kotarou (the main character) had such a big personality change in that route.
As is typical with Key visual novels Kotarou is a competent main character, though I feel that Key are relying a little too much on prankster characters. The support cast is pretty good as always too. I don't know if it's just me, but I always seem to think the men are always more interesting and funny than the women. The women themselves are still fine though. I really like that Kotarou's childhood friend Kotori actually plays along with Kotarou's jokes/trolling. She seems to be one of the few Key girls I've seen that actually has a sense of humour. Yoshino was pretty good as the reluctant friend. I do hate Kagari though. I'm not sure why Kotarou falls in love with her when she has the charisma of a turnip and a personality about as interesting as cardboard.
The music is great as always. The art seems to have improved from previous visual novels. It might have something to do with having new staff or higher production values. Whatever the case, it's less "Am I kawaii uguu~" so people put off by the usual Key art can probably tolerate it.
If I had to rank it, I'd say it's below Clannad and maybe equal to or a little below Little Busters.