Where CCC really shines is in how it handles antagonists, who are given the focus in development and are able to go from intimidating to alluring to sympathetic, sometimes over the span of a single interaction. Look past the fanservice aspect, and the story's use of sexuality for characterization is quite unique.

The gameplay has a lot of the same issues as Extra, but improvements here and there make a big difference in the experience and make it much more enjoyable.

Also, my favorite pairing in Fate gets married and it's canon, absolute peak fiction.