Okay, from the first listen, it's solid, modern, professional. It's shifting from the usual guitar-heavy, acoustic-driven tune that Blas is into, but kept his normally emotional high register to good use. It's a good banger that explores his vocal ability very well. The arrangement doesn't really come off amateurish and not overproduced. Normally, this will have huge potential to be alive on stage, but only if they can calculate the right effort to present it -- that also includes the right backdrop feeling (which I can feel Spain should nail easily by seeing their work with Marte), and keeping Blas healthy, throat and out, because all of that wailing and especially that high note in the end is an easy spot to mess up.
Personally? I don't really love it, I just like it. Universo made Shaj become something more interesting in comparison.