he was very clever; very smart - one of the smartest people I've ever met; he had pretty atrocious manners; and he didn't really "design" but rather reacted to a design, he had a very clear sense of what he thought was elegant, clean and clear; he never said "let's build this", he'd say that's crap, make it better; he'd say it's a beautiful birthday cake inside (the ideas within a product) but you've covered it in dog shit frosting (bad UI); his intuitive sense for clean design and clear usability was awesome. (and yes Woz is/was an enormous brain; able to "think in electronics" and express complex things with hardware) you will pry his company's products out of my dead, cold fingers; and he taught what it means to truly hate another human being.