I remember watching Ari Shaffir's amazing racist skits on youtube back in the day...and I remember him being involved in the whole joe rogan vs carlos mencia drama.
so about 5 or 6 years ago, when he came to my city to do standup, i went with my exgf.
it was funny, but not very funny...i remember him telling us some story about someone eating a pastrami sandwich and shitting on someone else's windshield at the comedy store on sunset blvd....that reminded me of like 4th grade humor...i guess the highlight of the show was when he went off on an african american female heckler during the show and mentioned something about her bringing down property value...like you said, it was more offensive than anything.
but we got to meet him after the show and he was nice enough...even got a flick with him.
i wouldnt see him live though again.