"He is quick, he is sharp and clever," Ardiles told BBC Sport.
"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."
"From the beginning as a very young boy he was a special one," added the 58-year-old.
"He played for Independiente, a very big club. It is not easy to make your debut so young but he did and he was a sensation.
"And if he wasn't a success at Atletico he wouldn't be at Manchester City now.
"If you look at some of the other money that has been paid in England, for example, I think that he is incredibly good value for money. He is only 23."