I went to see them about 15 years ago. The first thing that struck me was the audience. I'm not sure I've ever seen such a collection of ne'erdowells in one place. Lemmy got quite irritated at several points during the gig, firstly when he gave a eulogy to a recently deceased Ramone and asked the audience to make some noise to show their respect. The response was a bit half-hearted, possibly because there weren't many Ramone fans about, and Lemmy spat out some insults including asking if that was "the best you can show for your pathetic lives"
Later on, people were cheering the start of every song because they thought it was the 'Ace of Spades', because every song sounded like the 'Ace of Spades'. Lemmy got pretty grumpy and started shouting "not yet!".
It all struck me as a bit odd. A rocker struggling with being a grumpy middle-aged man, like a sort of warty Victor Meldrew speed addict.
Quite enjoyed the sounds though.