Jesus.
Not done yet, but building her like Jax does change things quite a lot from full AP. And she's really, really, really fun. Diving tower and E is such a pleasure.
Haha, Rengar jumps on me/Pant throws a spear, E, sup. Avoided so many initiates like this, and then attacked them to win the 1v1. She's really powerful with her W in Spider form and things like Triforce.
And her Q in human form to poke is amazing, it does tons of damage.