Name one limited 5* character you regret pulling for and one you definitely don't

As the title says. I'm pretty curious because I have my own experiences with regrets.

I certainly don't regret getting big Herta. She's the first time I ever got E2 on the first banner. Also got her signature LC. Needless to say that my saved jades weren't enough but she's worth every cent I spent on her.

As for regrets, this one goes to Yunli. I still like her as a character but using her in battle is so tedious, having to keep up with speed and turn-order. Plus, her performance is really underwhelming in regular combat.