Two months ago I started Nikke because I really like Summer Anis. Today I had to replace her with Liberalio because she was holding back my progression. I kept her in my squad all the way to chapter 25 normal/10 hard.
She will have a permanent spot in my lobby until EOS.
I hope Overspec Anis is usable in most teams, that would greatly lessen the pain of having to bench Summer Anis.