Not just her, but the concept of a Champion that can come in super fast, deal mega damage and then....safety return to where she was?
How is that good for a game?
No risk, max reward.
Someone justify it. I don't care if you can provide me with hypothetical counter play. I say its not healthy for the game.
Doe it EVER feel fun or fair to lane against her? Answer, no. No it does not.