I've also been a fan of Brian Cox since watching his many BBC shows on the universe and kind of chuckled at his last one where he got the BBC to pay for nice vacations around the world and tie it back in a universe show anyway :)
When I heard he was coming to San Francisco, I figured it would be fun to go see him. Contrary to Neil deGrasse Tyson at San Jose Center for Performing Arts, his talk was a bit more technical, and explained the concept of spacetime in a way that most people could grasp.
However, about half the talk was also more metaphysical, mostly with his sidekick (whom I didn't know), Robin Ince, who I just found out, is actually a comedian. I wasn't as much of a fan of his part which I thought detracted of other things Brian could have shared with us. That being said, it was still a very enjoyable presentation, very happy to have been.