For the most part I don't care for his music, though I really like the covers he's done of other artists' songs. His version of "Tainted Love", for instance, is one of my favourites. I also have his covers of "Sweet Dreams Are Made of This" (Eurythmics), "Blue Monday" (New Order), and "Down in the Park" (Gary Numan), and I like them all.
I will say, though, he knows how to milk publicity for all its worth. Several years ago he had booked an arena in Calgary as a concert venue as part of a concert tour. But as the date drew closer, the arena management decided they didn't want someone like him performing at their venue, and cancelled the concert. Manson's people threatened to sue for breach-of-contract, and the issue generate substantial media coverage. You can't buy publicity like that.
(The concert went ahead as planned after the arena realized that it would lose the lawsuit.)
My only comment on that issue was, if you don't like his music don't buy a ticket for the concert.
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"Some mornings it's just not worth chewing through the leather straps." -- Emo Philips