demon machete has nice scaling = higher dmg output
but its not by much once you realize how bad its moveset compares to other great swords
its generally slower due to the fact that it has more delay to the swing than a standard weapon of the same class
highest dmg, but outclassed by faster, better adapted great swords like the zweihander and so on
also the str requirement to 1hand it is much higher than what you would normally expect
meaning you have 2 kind of invest in it 4 it to be effective