The song is fine, it's not mindblowing or anything, the best part is obviously the instrumentals. There's a bit of recency bias going on with the overwhelmingly positive response, and that's normal. Let's say that it's not her promotional single with the most oomph, but I wasn't expecting that to begin with.
I don't think I'll listen to it ad nauseam before the album gets out, but looking forward to hearing it in that context.