Zinedine Zidane helped convince Isco to join Real Madrid instead of Manchester City in 2013.
Isco has enjoyed playing for Zidane since he replaced Rafa Benitez.
"There's nothing to say about Zidane. The results endorse that," Isco told Madrid's official website.
"We fought for La Liga until the end and we've made it to the Champions League final. He's been an injection of morale for us.
"He's an example for me and for everyone. He has won almost everything and he entertained everyone. It's an honour that someone like him coaches you."
The future of Isco with Real Madrid is in doubt as they look to balance their squad.
'It's been a difficult year, with highs and lows," he said. "We didn't start well but there are times when decisions must be made and things have improved.
"We're going into the end of the season in the best form possible.
"I'm happy with what I've achieved but excited by the future. There is no better place to win titles than at Real Madrid."