It's a true GNR fan only song.
it came out when GNR went fairly quiet, it's too long for the radio and music channels therefore not much airtime, most people probably dont understand it bcuz of how deep the song is and what it's about therefore cant get to grips with it and cant relate to it. Also the song is so unique and it doesnt sound like the songs that made GNR in the first place, it was simply overlooked
...what a fuckin tune though, vocals/lyrics,piano,guitars,drums... absolute masterpiece, best song ever.