I'm pretty sure Patrick or Kadeesh or someone has touched it.
Kadeesh has played it several times and probably circlejerked with his cousin(s). Ask him how it is. I've only seen the game cgs and I have to say that is some nice artwork. Only NAVEL can produce that kind of shit.
The only visual novel I want to try out is ef~a fairy tale of two and the recently released one ef~the latter tale. The visual novels are apparently amazing compared to the anime.