Almost two years since Stokes' involvement in a late-night brawl that stripped him from the vice-captaincy post, he has completed what many have referred to as a redemption story.
The World Cup final hero experienced the lowest point in his career during the tough period that accompanied his trial for affray - a charge he was later cleared of - due to which he was unable to participate in his team's tour to Australia.
Stokes top-scored for his team in a tense chase in the showpiece event's grand finale at Lord's just over two weeks back and his return as the Test vice-captain delights Root.
"I have asked for a long time (to have Stokes back as vice-captain) but he was made available at the end of the World Cup," Root said during his pre-match press conference at Edgbaston.
"It is fantastic to have Ben back, not just playing and playing back somewhere near his best -- it has been coming a long time.
"The way he stepped up in big moments in that World Cup was just him down to a tee. It is what he does -- he responds well to responsibility and to the big moments."
Stokes will also add much-needed batting depth to England's Test line-up that has been prone to batting collapses far too often.
"He offers with all three departments -- he bowls, bats and he is one of the best fielders and he drags people with him as a natural leader on the field and in the dressing room."
Root praised Jos Buttler, who served as his deputy in the absence of Stokes, but said the wicketkeeper-batsman was happy to relinquish his role for a more deserving candidate like Stokes.
Although Root has frequently declared his preference to bat at the No. 4 position, he is willing to move up one slot to restore stability to the top-order lacking experience.
A veteran of 81 Tests, Root will be the key to fixing England's batting woes in the longest format.
"I think it's important to spread the experience out and it gives me an opportunity to lead from the front as well," said Root.
"I also feel I'm in a place where I've got my head around the captaincy and my batting and I'm able to separate the two."