A big part of the reason this song has been successful is the
"ATARU" show has been a hit. When you have a 17% ratings share that's pretty good.
The song's is a
really well-crafted piece of pop/rock, though. All the hooks and things it does well aren't apparent at first listen. There's a call/response between Ringo & the guitar during the chorus the first couple lines that's very cool. Nearly every part of the song flows into the next one
Ringo's vocals are controlled compared to most of her other songs. She's not singing her guts out but it wouldn't fit a song like this. In general, there's little that would be offensive to the listener, but there's still a lot of depth and things going on.
The lyrics seem to be pretty good as well, from what I could gatherthrough Google Translate (the song has nothing to do with autism, FWIW). I was impressed that the 3 English lines actually make sense within the context of the song. It's not just random English that "sounds cool".