Yes, Sigfrieds Funeral march still makes the hair on the back of my neck stand up. Wagner was a anti-semetic dick, but god could he make music. And Orffs O-Fortuna amazing also.
I recall a music teacher commenting that despite some inclinations of that sort, Wagner had a number of life-long Jewish friends. He mustn't have been too hard-core in that regard (but sufficient to later draw the attention of Hitler and the boys).
There's an interesting documentary called "Wagner and Me" on Netflix, narrated and hosted by Stephen Fry.