Yes, I agree. He has good swordplay, he uses strong kicks, he spams lasers, pretty versatile. Though I would disagree with the narrative that "Kizaru can keep up with swordsmen in their own game", since it implies that swordsmanship is just a side power inferior to his other abilities, when in fact I think that Kizaru is no weaker in CqC with his named blade Ama no Murakumo as compared to spamming Yasakani no Magatama from range. He just uses the fighting style most suited for the situation.