I just finished Rubens route and I enjoy the story a lot! The writing is easy to follow and engaging. I love the way things are described, really brings life to the text.
Some nitpicks would be the amount of typos. A lot of dialogue starts with a lower case and 'him' is often used instead of 'his' which does jostle my concentration, but those are just minor issues.
I am looking forward to Zarik's route! I enjoy a freaky man.