Complex sentence: Wong was a very popular instructor with a user friendly approach to teaching who trained a number of accomplished Wing Chun practitioners as well as assisting with the "rounding off" of the many international instructors who travelled to Melbourne to complete their Level 10 studies.
Split into simpler sentences: Wong was a very popular instructor, with a user friendly approach to teaching, who trained a number of accomplished Wing Chun practitioners. He was also responsible for "rounding off" the training of many international students/instructors who travelled to Melbourne in order complete their Level 10 studies.