My experience:
I went to his concert at Penn State. It was pretty shitty.
The entire concert he just yelled at the crowd:
"YO WHO LIKES TO GET DRUNK"
"YO WHO LIKES TO GET HIGH"
"YO WHO LIKES TO GET HIGH AND DRUNK"
"YO YOU KNOW WHEN YOU ARE HIGH AND DRUNK AND THEN EVERYTHIN STARTS SPINNIN AND YOU LIKE OH FUCK"
"YO WHO BE DRUNK AS FUCK RIGHT NOW"
And then he would do a song, and some 9th graders behind me would yell "OMG I LOVE THIS ONE". And then the 11th grade girl in front of me would try and hump my leg. It was retarded.
I left half way through.