Love them or loathe them watch and remember that this is still one of the best guitar riffs ever. Before the internet was mainstream, before Youtube existed, before Napster and before the CDRW you passed this around on audio tape. Rock on.
A great video too. Look for the part when Slash kicks the bottle / can thing across the room not to appear too, but out of frustration at having to play the same riff over and over so the director could get the shot he wanted.
P.S. In my head I look like this when I pick up my guitar and try to coax a tune out of it.