Jimmy runs hot or cold for me. I find some bit really clever and or funny. Others, not so much. But there are some consistent things that I just can't stand.
1. I hate the "banter" between him and his announcer. It comes off to me as self absorbed childish oh aren't we so clever gibberish.
2. I don't like his over the top gushing over many of his guests. When he's not OMG I'm the biggest of your fanboys, he's dominating the conversation, trying to figure out jokes instead of just doing an interview.
I think the comment about him being a kid trapped in an adults body is well put. When he grows up a little more, I think he could be very good.
At this point those items keep me from watching regularly, or cause me to turn off and go to bed), when I do.