The former Tottenham forward was full of praise for the 67-year-old as he leads the Black Cats into pre-season training.
Sunderland striker Jermain Defoe has been discussing pre-season under Dick Advocaat with the club website, and also opening up to just how important it was for the Dutchman to extend his spell in charge at the Stadium of Light into this season.
The England international joined from Toronto FC in January, and scored some key goals to help the Black Cats keep their Premier League place this season under Advocaat.
"It's been good, it's been hard," Defoe said of pre-season to the Sunderland website. "But that's pre-season, you've got to get fit and put the work in and prepare for that first game."
"I'm very pleased Advocaat is back. Obviously he's an experienced coach, a nice guy and we had a way of playing under him. It was important for us as players for him to stay."
When asked why the former Rangers boss was such a good fit for the club, the 32-year-old pointed to Advocaat's tactical confidence, as well as his effective and constructive management of players.
"He knows what we wants, how he wants to play," the forward added. "He likes the Dutch way, a lot of passing drills and sharp possession.
"When he has something to say it's always constructive criticism. He's an experienced manager and he knows exactly what it takes to win games."
Advocaat was set to retire from football this summer after keeping Sunderland up, but was convinced to stay for another year after falling in love with the club.
After his 4 goals in 14 Premier League matches last season, Defoe will be eager to help his side avoid another relegation dogfight in the coming campaign, and under Advocaat, who lost just three times in nine matches after taking charge in March, the club could well push on.