Some Fengshui master said must use FS items and some said no need to use than who should i believe in?

the one who doesn't ask you for money|||Goes back to the old saying, if you find Budha than kill him. Meaning, you must find/create your own way and not follow the path of others.|||None. Fengshui is a silly practice perpetuated by clever marketing for commercial reason. Don't follow the herd!