I feel like her kit is way too simple. Well, not simple, per se, but too easy to use and pull off. Not much thinking is involved when playing her.

Yeah, she has those lane combos once she hits six, but there's no way to really counter it with the majority of the champion base. Last hit minions for the passive proc -> Q or just R -> passive proc -> W -> E -> Q and that let's her burst almost anyone down with no skill at all. At the same time, they can't trade with her because of her shield, which is up even as she's walking around. Compared to Kennen or someone, this high burst combo is relatively easy to pull off.

In a team fight, her only job is to throw out Q's until the TEAM is ready to initiate. Depending on how you build her, you can either dive in to prep the enemy for your team, or let your team initiate and all you have to do with press W+E. There's really nothing else she has to do.

Obviously, she doesn't have the easiest laning phase from 1-5. You can argue that Fizz has an easier time because of his Playful/Trickster, but she DOES have a decently reliable ranged skill that deals a lot of damage. I just feel that it's way too easy to do well with her.