It is certainly one of the most incredible and underrated feats in the series. The guy has the ability to nullify DF abilities with one hand, while wielding the Gura Gura, the greatest offensive power, in the other... Such a terrifying combination that it makes sense for him to be worthy of being a Yonko.
On the other hand, Kaido tanking so many devastating hits while also levitating a whole island is also not talked about enough, ACOC attacks would quickly KO most characters.
I also almost never hear people talking about Kaido's observation haki and speed, Kaido while in his slowest form easily predicted and dodged Luffy's attacks in snakeman form, that's something that observation haki master Katakuri had trouble keeping up with.
I think most of Kaido's feats are underrated, there's no reason to put him below Roger, yet most people do, even though Kaido showed everything Roger did and more.