Ardiles, who has played and managed in the English top flight with Tottenham, believes Aguero, at 23, represents a fine acquisition by City boss Roberto Mancini.
"Aguero is quick, he is sharp and clever," Ardiles told the Manchester Evening News.
"He can play as a lone striker, he can play with another guy and can come back and create things.
"He is very sharp. You give him one yard and this is it, he is gone.
"His vision is to score goals. If he has a little chance the ball will be in the net.
"I have no doubt whatsoever that he will be wonderful in the Premier League."