What are Quinns strengths and weaknesses supposed to be?

Quinn, as a champion has no defined weaknesses. As a top laner all she has is strengths. If you get cc'd, dashed on, etc. you just do your flip away. Furthermore she has a massive blind, so even if you do get in on her, you can't AA for damage. Who counters Quinn? Looking at champion.gg for Quinn, of all top laners, there are a measly 2 that have a better than 50% win rate against her. Am I missing something? Is there some way to play a normal top lane pick into Quinn and win? I've played dozens of games now against her, and I can't think of a single time, no matter who I played, that I won lane. What is her weakness supposed to be?
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