As most have pointed out here, he has the most marketable voice in KPop. True pop voice. He was not a belter but I think with On bridge and Dynamite high note, it's safe to say that he already has found the kind of stylistic singing approach that he likes.
The only ones who truly criticize him are usually bitter fans of other groups or akgaes LOL. Most ppl appreciate him.
Adding Youngdae Kim's fantastic review of Jungkook.