I don't listen to his music but I listened to 4 or 5 songs from that concert cause I've been a Nirvana fan for almost 25 years and dang, he did a great job.
And man Barker is a great drummer (Grohl leaves some shoes to fill behind the kit).
I can't say I think his face tattoos are any cool but I've seen him on interviews and stuff and he actually seems like a down to earth, nice person.