If Simon played like this all the time, I'd be his biggest fan. Phenomenal play.
I know, people say he can't be aggressive because of his physicality, but I disagree. He's six feet tall and is a very fit bloke. He's not going to ever reel off winner after winner, that I know, but he's proved in the past he can serve at over 200km/h, and has hit some great shots off both wings. Certainly not a massive lack of power.