The sound comes from a widely shared interview moment where Vin Diesel keeps praising a reporter, repeating it's so good with unusual earnestness. The short exchange was clipped and reposted on YouTube, then trimmed further for soundboards and short form video. Its humour comes from the contrast between his tough action star image and the soft, delighted way he delivers the line. That contrast helped it spread as a standalone reaction, separate from the full interview, and it is now used whenever creators need over the top approval in under two seconds.
About this sound
Vin Diesel repeatedly saying it's so good in an interview clip, used as a reaction sound for praising food, edits, wins and anything surprisingly satisfying.
The clip captures Vin Diesel in mid interview, leaning into the phrase it's so good and repeating it with genuine, almost childlike enthusiasm. His deep, gravelly voice slows down on each word, making the praise sound both sincere and unintentionally funny. There is no music or background effect, just the warmth and emphasis in his delivery. As a short reaction sound it lands instantly, turning a simple compliment into an exaggerated seal of approval that makes whatever came before it feel funnier, tastier or more impressive than it probably was.