I just finished watching his return bout where he pissed hot and he looked great against Mark Hunt, the guy regardless of pissing hot is a freak athlete. you just cant come back and do something like that unless you are special.
His only weakness is getting hit he hates it, he doesn't have a glass chin by any means he has a pretty good chin he just doesn't like getting hit there and will curl in a ball to avoid getting hit with a barrage, if he wasn't afraid to get hit and actually stayed patient and committed to his punches he would be deadly, he has that freakish long reach and probably one of the quickest sprawls for his size.
I don't think we will ever see another guy like that in MMA again for a long ass time, weight 260 plus and moved like a freaking lightweight weigh ton his feet, freakish power in his hands, explosive as well.