Rewatched it a couple times now. Yeah so Konatsu is still amazing. Minami is adorable. Asuza and Ayano are really damn good. Akari is just there. Saki should add more energy imo. And it wouldn't really hurt Arai to at least pretend to be interested even if just once.
They danced pretty well (but Mori Saki doesn't move much on a few bits, maybe the skirt is in her way?), they surely know their game. Sadly they had to dance to such [opinion]an awful song[/opinion]