I have always like bands who come out with these longer songs where there are transitions from quite or slower parts and then culminate with a slow, wailing guitar riff that changes the whole song. Most bands have these songs but only a few really become classics in my mind anyway. Songs like Zeppelins Stairway to Heaven, the Beatles Let It Be, Madam Blue by Styx have those great transition points. Queen also has several that fit this bill. To me, this Guns N' Roses song fits that bill.