I hated the song first listen, but the MV really helped me come to appreciate it. I think it's cute and cheeky, and the song is a grower. It seems fairly balanced line wise, and that dance break is super cool. I have it stuck in my head constantly. A lot better than Teenage Solution, which I still don't get why people enjoy.
Also, Mei's "What?!" is super cute.
My only true gripe is that any time there's ever a "to/two" in song lyrics, the choreographers always have them hold up a peace sign. They've done it twice in a row now, for YoshiYoshi's "Tonight's" and "It's up to you" now. Like, let's change it up a bit, YOSHIKO/YOKO.