I just finished the Demo and what a surprise it was! I'm not a VN fan, but the art, the music and the concept of monster girls in a catholic school got me.
I believe in God but I don't consider myself catholic or any religion, but in truth this game made me rethink my faith and my closeness with the Lord, in a way I feel identified with Gabe's doubts and way of thinking. I love that not all the characters are Catholic, it's good to see a variety of faiths and thoughts, it's a good message of acceptance of others regardless of their beliefs.
No doubt I was delighted with the game, I look forward to the full version and I will buy it as soon as it is available.