Is Big Herta worth it on my acc?

I currently have an E0S1 Sunday & an E0 Robin, so I’m not going to bother pulling for yet another Harmony unit. From what I understand, they don’t synergize well with Herta.

Initially, I planned to pull for their E1 during their reruns, but since Robin’s banner is right after Herta’s, I need to make a decision soon.

My current units don’t seem to work well with Herta, and I’m not planning to pull any of her BiS teammates since I'm more interested in summon meta. I also don’t have a 5* LC for her, and I can only aim for E0S0.

She’d need to pair with Herta/Himeko, RMC/Robin/Sunday, and FX/Aven/Gall.

I’d appreciate your opinions on whether it’s worth pulling for her or not.

*Edit: The reason I've been tempted to pull for her is because 1-She shares a relic domain with Sunday so I already have a build In store for her.

2-She's said to be Acheron level, brute forcing every mode. She's my fav Dps and imo no one else comes close to clearing the game with such ease. Acheron's ult ignores weakness and that's a huge factor. So how true is that claim?