i don't see anything special about him, he is overrated, bland, one dimensional, have a boring background,

he can't win fights without special swords, he look badass against c level fighters, but always gets exposed even with mediocre elites like killer and hawkins,
he's Odas favorite due to him being only japanese in strawhats, maybe that's the only special about him, despite the fact oda give him lots of privilege, he still end up as a shitty character .