Jimmy Fallon hosted the PlayStation 4 during his post-E3 videogame week with Sony's Mark Cerny, who showed off Knack on the new console. I'll say it outright, Mark Cerny was much easier to watch than Phil Spencer, and the entire appearance felt more natural as a whole.
For instance, rather than going the route of spouting constant buzzwords and "television integration," Cerny namedrops Katamari Damacy like it's genuine, and the whole affair doesn't feel nearly as scripted as Microsoft's appearance. I think Cerny was the perfect choice, as his less-corporate image and game design experience helped increase the appeal for pretty much every demographic.
They also re-iterate the full support of used games and the lack of a required internet connection, which the crowd cheers for, and Jimmy briefly celebrates (as Jimmy tends to do on a constant basis). I'd say it was a success.