Do you like heavy metal?  Metallica is my favorite heavy metal band.
I grew up in the 1980's so I heard a lot of heavy metal growing up!  
It's crazy how they attracted such a wide audience while being derided by critics.
I guess it was like any generation's "rebel" music, like Elvis was criticized in his day, punk got criticized too. 
What really drew me to Metallica was the band's fast tempo's and instrumentals.