The true end after you do all the other routes makes it worth it imo. For the girls personalities, well they are just the typical ones every anime/hentai/vn uses, your never going to get away from the generic archetype of the various personality types, berating a game for that is not really nice, when thats just how anime and such is. g-senjou no maou is pretty good, it uses a rather unique route setup, where all the other girls routes are like side things you do, then it goes back to the main route without needing a restart iirc. However if you skip their side route usually it gets a bad end for that characters route. Another vn I enjoyed was Comyu: https://vndb.org/v1896 each girls route was fairly diffrent from each other as well. It has a true end route too.
