"He is a special kind of player - you don't see that very often these days, a guy who can decide a game by popping up from nothing, even when you don't start the game that well," he told the club's official website.
"You had that with Ronaldo at United, with the same quality, and we have it with Carlos.
"But he can't do it alone. He is a tremendous player but he knows that he needs his colleagues on the pitch. That makes us dangerous to every opponent - if it isn't Carlos it will be someone else who steps up, maybe [Edin] Dzeko or David [Silva]."
The Dutchman went on to admit he is enjoying the competitive world of the Premier League and stated the unpredictability of England's top flight makes it unique.
"I think it makes English football unique," he added.
"The Premier League has developed in the last two years to be not just about the first five teams."
Big victories for Newcastle and West Brom at Arsenal, and Blackpool at Liverpool are just some of the shocks so far this season and City have also been humbled after their 2-1 defeat against Wolves at Molineux in October.
"You can see that the 'smaller' teams, with all due respect, are real contenders these days. Wolves and all the other teams at the bottom of the league can give you real difficulties," he continued.
"That makes the league really exciting. We have seen this year everyone dropping points, which means the league could go all the way.
"We were just happy with the win against Wolves because it wasn't an easy game."