My opinions on the performance because they matter:
Aichan is so fucking cool.
I love Kanon's hair no matter what anyone else says it's awesome.
I loved Aika's confidence she had during her solo line.
Riho looks so smug, I love it.
Erina smiles properly, super cute but she should another hair style.
Risa's line pwned the whole thing after Aichan's coolness.
Sayumi, Mizuki, Reina were just good as usual.
I wish they would have done a longer version though. ):