vs Kai'sa

I searched for Kai'sa and didnt find anything so I started this thread.

I've been playing her a lot. She is cool and all that but I think she is mediocre. 0 mobility, except for an aggressive ult (which can be utilized defensively if played right). Her E is only good as an escape after it has been upgraded. So I laned against her top, Why would anyone play her top? I ruined her. She had 0 impact in that game.

I would like to read your experiences with vsing Kai'sa top as Riven :)