Fellow Saniwa here. I just wanted to make this clear: just because it is an adaptation of a game, it doesn't mean it has to be shitty for newcomers who watches it without having played the game. Let me repeat: it shouldn't be necessary to play the game to enjoy the show. Don't try to pretend that the show delivers anything well.
The show is quite pathetic in appealing to the people who haven't played the game in several ways. They don't develop any characters; they are only busy adding more to the plot. I can understand that this happened because it was aimed at the people who played the game. But it still doesn't change the fact that it fails to develop characters.
The plot is laughable, the animation quality is mediocre and there are too many things wrong with it. But hell, I love it. I love the game and love the characters and I absolutely adore it.