Both of my girls were metalheads in their teens and I am rather fond of it myself. I took one of them to see Motorhead but the band were not very good. Metallica, on the other hand, was excellent. My eldest daughter went with her boyfriend to see Megadeth but said that they were boring. The support band, Pantera, was much better.
The same daughter says that the worst performance she has ever heard was by Bob Dylan. The whole family drove for 2 days to see him perform at an open air venue, and they were very excited. They were so disappointed. They said the performance was dire. The songs were unrecognisable, sung in a style which my daughter could only describe as French nightclub style. They only recognised a Dylan classic when they managed to catch a familiar phrase. His interaction with the audience was minimal and he just walked offstage at the end, without a word. People were sitting on the grass and my daughter noticed that several people around them had fallen asleep.
She was disappointed, as she was brought up on Dylan music - I was a fan. I wish I had seen him in his prime. At least I saw Leonard Cohen, who was mesmerising.