I haven't read him. However, I do find it disturbing how often he is quoted by authoritarians to justify their brutal actions.

@snytiger6 Nietzsche was very anti-authoritarian in all his published works prior to his death. However his sole heir was his sister and she was a foaming at the mouth, rabid fascist bitch.
In order to ingratiate herself with her object of post menopausal lust Adolf Hitler (she is supposed to have claimed that his speeches made her orgasm) she gave all Nietzsche's unpublish material, early notes and rejected ideas he never intended for publication, to Hitler, in exchange for one visit to her home.
Hitler than gave them to Goebbels who edited them in to pro fascist propaganda (he did the same thing with Nostradamus) and thus has besmirched Nietzsche name ever since as a father of fascism, which is completely untrue. Nietzsche even ended a long and deep love of both the person and the works of Wagner because of the latter's Fascist sympathies and right wing politics.
The whole idea of the Nietzschean ubermensch comes from these writing, and was idea long dropped by Nietzsche himself, but were in fact a theory that was scientifically way ahead of its time, NOT in terms of race, but in terms of genetics and the presence in humans of a "trait" that we now know to be that of the Neandertal ancestors of human beings that generates more creative, more heat, cold and pain resistant bodies and less inclined to mob or as he called it "herd" behaviour.
This genetic trait is found in all humans and makes up about an average of 1 to 3% of the genome in most, but as much as 5% in some. Physically it tend to show up as shorter limbs, wider chests, bigger brain pan and a greater tendency to original thought.

@LenHazell53 Okay, if that is correct,, than I find it disturbing how often he is quoted out of context and/or misquoted.

@snytiger6 There was a movement to reform him back in the eighties, but the poison runs deep.