This is an odd thing to say when Steve Jobs achieved most of his success after parting ways with Woz. Jobs was the product guy at Apple. He laser focused on every detail to make sure that the experience was perfect.

Jobs wasn't an engineer, but there were plenty of talented engineers at Microsoft working for years on Windows Mobile (before Windows Phone) because it was so unintuitive. By contrast, the original iPhone was a decade ahead of it's time in terms of design. It had pinch-to-zoom, a proximity sensor to prevent accidental touches during calls, a light sensor that adjusted brightness, and an accelerometer for landscape and portrait mode. These features were originally considered gimmicks, but it turned out to be indispensable.