The Spaniard's side are currently second in the league table following an unbeaten start to the campaign.
The former Liverpool and Chelsea boss also has a Champions League win under his belt following Napoli's 2-1 victory over Borussia Dortmund.
"Rafa is a very nice man, he's always smiling and relaxed," De Laurentiis told Sky Sports News. "I hope it will be a very long relationship."
Benitez has returned to England this week to lead his side into their second group European fixture - a clash against Arsenal at the Emirates.