Alright, so setting aside how this was chosen, i guess it makes sense for Montenegro to send a Yugo-ballad since that's the only thing that's brought them to the final, two times.
First off, i kind of like the sparse, abstract aesthetic of the staging, it's not too much of what you'd expect for the song. The "blindfold" is just silly, i think they can come up with a better gimmick to illustrate the same idea and still keep the overall look of the staging. Her clothes and her overall performance is very appropriate for the song. However, the climax of the song needs to be visually underscored a bit more.
As for the song.... it's got something more than the norm for this genre in Eurovision, but i find it a bit hard to remember. I think many Western viewers are gonna find the verses rambling and monotone, and just kinda skip over it thinking "it's another one of these songs", and it's really gonna take something more to get attention from more than the neighbor countries. But it has a decent change at making the final, definitely. But i don't see it becoming one of my favorites.