England continued their perfect start to their Six Nations campaign at the Aviva Stadium in Dublin, and Brown was quick to praise the contribution of the England skipper.
"Chris has stayed the same person, even with the captaincy," he told reporters. "He still works hard and is a brilliant leader and does for England exactly what he does for Quins. It's great to have a leader like that who sets the example and you follow. When he needs to say something he will. He's a great bloke as well - I've known him since I was 18.
"When we were in the academy we were asked who would we pick as a future captain and we all chose Chris. Now he's England captain. He was exactly the same then as he is now - he leads by example and works so hard on and off the field. He's a great character and always has a smile on his face.
"When he says something you listen and that's something he's had throughout his rugby career. It shows the type of bloke he is that he can step up and lead the team after just one cap. He's a world class player and he's shown that recently."
Next up for England is a clash against France on February 23.