I've watched a couple of Joe's videos and I think that he's quite good at giving reviews. Sure he's a bit on the unconventional side when it comes to his presentation but that's what sets him apart from most reviewers (if not all) and this is what I find appealing. The costumes, background scenery and props used during some of his reviews together with his wacky sense of humor add to the experience. Then you have the review itself which I find to be quite different from reading or viewing one on a gaming website. It feels like he's really chatting with you in a somewhat casual manner you can relate to. And then let's not forget his sidekick/s aiding him with many of his antics on the show. It's just so hilarious to watch them sometimes. So yea, I think he's quite good at what he does. A bit short in height and chubby in looks though.
Apart from the fat shaming I agree. He's been one of the best and most honest game reviewers on Youtube for a decade.