I like it. Whether the song itself is that good is almost irrelevant -- it'll grow on people with repeated listening. The dance, the video, and the costumes are all wonderful, and everybody looks great.
And Haruna looks more-and-more like ~2001-era Kaori with every PV.
I suppose we're stuck with autotune everywhere for the next several eternities, so it's no longer even worth mentioning. But I will say that I'd rather hear even very bad unaltered singing than very good autotune, at least with the current, crude, Frampton-Comes-Alive-bad-70s-sounding autotune technology. But whatever. **goes back to ignoring autotune**
If madness made us strong, we would all be invincible.