The Roman club have won all seven of their games so far this season and top the league table.
"We have made a great start to the season," he told reporters. "But Juventus and Napoli are still the strongest teams in the League.
"We are playing some great football at the moment and changing the way people think about Italian football.
"First and foremost comes the person, and Francesco Totti is a fantastic man. He is 37 years old and is the total professional."
Roma's last game was a 3-0 win against Inter Milan on Saturday.