(Spoiler alert!) I finished the game... The ending... I just wish I could have ended up with Isabelle instead of Tori. The Isabelle ending you have is... underwhelming, because it makes her subordinate to her mother. I preferred treating Isabelle like the Princess/Goddess that she is, and I preferred treating her mother like the worthless old cow she is. The ending you have for Izzy just didn't match how I pictured it in my mind at all. Plus just how the ending happened, with the screen with all the question-marked boxes... It would have been better if you could choose a girl and go on a path that naturally leads to her, instead of how you did it.
Which brings me to why I really don't like harem-building games to begin with. Because one girl is usually head-and-shoulders above all the others, and I end up concentrating entirely on her and neglecting everyone else. And this game was no different, with Isabelle being way better than the rest. However, that said, as harem-building games go, this one is magnificent. I wouldn't have played it all the way to the end if it wasn't. I just wish there was a way to, like, pick a path leading to an ending with an individual girl instead of the way it did end.