Alright, so on the plus side, the UK is at least trying different things with their recent entries, and not stuck in one genre. However, besides the so-far one-time fluke "Space Man" they still can't seem to do anything right. This unappealiing mess somehow has all of the typical problems of recent UK entries.
First off, as everyone else seems to agree, it's just too complex and discontinous. It's straight out of a musical, in a scene where things don't turn out like expected, and i don't get who even thought that was a good idea for the ESC. It doesn't strike me as well written or even musically interesting, besides the novelty of the constant changes, the parts are individually weak and ordinary.
I don't get the supposed similarities to "Bohemian Rhapsody", it's much feistier and less serious, and about the only similarity is there's vocal harmonies and a lot of dramatic and sudden changes. If anything, it's similar to "Who the Hell is Edgar" and O'g3ne, but whatever.
Another question is if they're gonna be able to sing this well live, especially considering how often the UK fails at this, for whatever reason. A sub-par vocal performance is gonna be absolutely crushing this song, and another bottom 2 placement is far from unlikely.
So overall, i'm not really supporting this entry, and i'm betting on it not improving their average ranking of the last two decades.