The Portuguese was painted as a divisive figure in the Spanish capital, but the defensive midfielder could only speak highly of his experience playing under the 50-year-old
The 50-year-old's last season at the helm of the Blancos was marred by reports of conflicts with numerous personnel - including captain Iker Casillas and Spain international Sergio Ramos.
But in Alonso's eyes, contrary to media perceptions, Mourinho - who has since left Madrid in favour of a return to Chelsea - is not a divisive figure, but rather a "perfect" communicator.
"He's someone who can touch a chord and knows how to perfectly transmit messages in the dressing room. He is a good communicator," he told So Foot.
"He knows how and when to make quick decisions which can change the outcome of a game."
Alonso has undergone surgery on a groin injury and will consequently be out of action for six to eight weeks, thus missing the opportunity to represent Spain at the Confederations Cup.