I had played the game, but i dont find that much sucking, I think we can be more encouraging to any game developer, even we are willing to pay or not, it is very personal, I am also not a pay-willingly person except the game is worthwhile to support for its excellent story plot, CG or animation as a whole.
However, I find 2 little girl character really lovely, and i find the story is really short, after playing the game, I wish i someday can have these 2 little cute daughters, of course, I don't like "incest things" with such lovely creatures
But i wish, as a player, stayed a little longer, with these 2 lovely girls who lacks of love from their father, it feel so warm and touching when I saw a little girl crying against her dad by shouting " you never chat with me".
Maybe the story should continue with relationship that the player acted as "UNCLE", i feel lost for abrupt departure between the "father" with his 3 little daugther, I hope there can be another way to keep the story going on.