Probably a minor thing to most players, I love the customisation so much. Being able to actually specify being tall so there's not constant references to [character] being taller is wonderful. I also love that there's actually consistent and often choices. So many visual novels already have a pre-decided personality for your character (and almost always one I dislike) despite saying the character is yours and reacts as you want or something, so that was a wonderful change. Basically I really enjoy everything but Cole :I, but there's even the option to not like him :D
Side note, it is really funny and confusing to have Mom and also Mom and Elizabeth and also Elisabeth.