I think it'll be weird and like anything new, might take awhile to grow on some people. I think Better is a song people won't like upon first listen, but will enjoy... five minutes later it'll hook 'em and they'll want to listen to it again.
I've seen it happen to at least five random people I know.
GnR needs to re-establish themselves again, even after they just toured for a year... which helps since they received a lot of press.
They need to be on the cover of Rolling Stone, SPIN, etc, etc.