Huh...i don't know, in my case even if i didnt play 600 VN's i can still know which heroine will fall into which category and her personality, stuff like that, the thing that makes me want to go to their routes is how they are developed and how her story goes, doesn't matter the personality no heroine is going to have the COMPLETELY same story as the last one or the next one...i guess i like how unique it can be. I couldn't count with my fingers if i even had like 10 hands how many heroines with the "kuudere" personality i went for and all of their stories were different